Many thanks to everyone who responded with input--here are the results with line dances listed first:
 

Por Ti Sere by Jo Thompson lead the month and was taught by 11 instructors in NY-4, LA, MI, AZ, OH, IL, TX, and WI.
 

10 Teaches

Red Hot Salsa by Christina Browne - Ontario, PA, NE, NY-3, OH, FL-2, MN and TX.

8 Teaches

Hams Jam - Peter Metelnick (Ontario, UK-4, ND, VA, NY, FL)
Mucara Walk - John Steel (LA, NY, HI, UK, MI, AZ, CA, FL)

7 Teaches

Pot Of Gold - Liam Hrycam (UK, Ontario, NY-2, AZ, FL-2)

6 Teaches

After Midnight - Judy McDonald (NJ, Ontario, MI, NY, UK, AZ)
Cripple Creek - Kip Sweeney (MI, NY-2, OH, FL, NJ)
Line Dancers Waltz - Jo Thompson (NY-2, NJ, AZ, OH, IL)
True Believer - Peter Metelnick (Ontario, ND, MI, FL-2, WA)

5 Teaches

Let 'er Rip - Peter Metelnick, (MO, LA, Canada, WA, TX)
Mama's Lil' Baby - Charlotte Skeeters (OH, WA, UK, FL, NY)
 
4 Teaches

Backstreet Attitude - Jamie Davis (UK, MN, NY, FL)
Dreams - Max Perry (MN, OH, FL, NJ)
Gimme A Beat - Peter Metelnick (Ontario, UK, ND, NY)
God Bless Texas - Shirley Batson (OH, CA-2, TX)
Heartbreak Express - Peter Metelnick (Canada, MN, MI, FL)
Jamaica Mistaka - Chris Hodgson/Metelnick (LA, Ontario, ND, NY)
Quando When Quando - (Ontario, AZ, FL-2)
Remember My Name - Pati Fall (CA-3, OR)

3 Teaches

 Baby Likes To Rock It - Hillbilly Rick (NE, CA-2)
 Cinco De Mayo - Livett/Thompson (NJ, NY, TX)
 Cowgirls Twist - Bill Bader (NE, OH, CA)
 Crazy - Cindy Truelove (NE, NY, WA)
 Elvira - Unknown (PA, HI, CA)
 Honky Tonk Twist - Max Perry (NE, OH, NJ)
 Misbehavin' - Peter Metelnick (Ontario, ND, PA)
 On the Double - Kathy Hunyadi (NY, PA, NJ)
 Ooh Aah - Sal Gonzales (CA-2, WA)
 Reelin' & Rockin' - Bev Cornish (Canada, NY-2)
 Rockin' Robin - Peter Metelnick (MI, MN, PA)
 Stroll Along Cha-Rodeo Cowboys (PA, AZ, IL)
 T-Bone Shuffle - Peter Metelnick (AZ, NJ, WI)
 Unbelievable - Bryan McWherter (NY-2, NJ)
 Walk The Line - Sandi Larkin (PA, OH, FL)
 Waltz Across Texas - Unknown (TX, NJ, NY)
 Watermelon Crawl - S Lipscomb (PA, Can, NV)
 XLR8 - Peter Metelnick (Ontario, UK-2, ND)

2 Teaches

 789 Stroll - Max Perry (WI, NV)
 All Shook Up - Naomi Fleetwood (PA, NJ)
 All Week Long - Peter Metelnick (MN, PA)
 Angel Two Step - Max Perry (AZ, NY)
 Bigger Than That - John Robinson (LA, MI)
 Boom Cha - Rob Fowler (Ontario, TX)
 Bread & Butter - Roz Morgan (NY, FL)
 Cajun Cross - Janet Padgett (OH, IL)
 Canadian Stomp - Unknown (PA, NY)
 Cat Strut - Nan Castor (AZ, NV)
 Cha Cha Lengua - Neil Hale (VA, FL)
 Chompin' At The Bit - Larry Bass (VA, AZ)
 Chuggin' Along - P Metelnick (Ontario, ND)
 Close Encounters - Bill Bader (UK, WA)
 Commitment - John Sandham (Ontario, PA)
 Copperhead Road - Unknown (NE, NJ)
 Country Walkin' - Teree DeSarro (NJ, NY)
 Cowboy Boogie - Unknown (NE, OH)
 Cowboy Charleston - Unknown (NY, PA)
 Crossover - Scott Lanius (HI, TX)
 Cruisin' - Neil Hale (OH, TX)
 Dangerous - John Robinson (Canada, HI)
 Dare To Mambo - Forty Arroyo (NY-2)
 Electric Slide - Unknown (PA, Canada)
 Feet Don't Fail Me Now - P Metelnick (Ontario, ND)
 Foot Boggie - Unknown (HI, AZ)
 Freeze - Unknown (MI, AZ)
 Gatlin Boogie- T Curso/D Pothier (MN,CA)
 Gimme A Break- P Metelnick (Ontario,ND)
 Got To Be Funky - D Beecham (Ont, CA)
 Honky Tonk Stomp - P Watson (HI, TX)
 Howdy - Kevin Richards (NY-2)
 J Walk - Sue Lipscomb (OR, OH)
 Livewire - Jo Thompson (NY-2)
 Men In Black - James Kellerman (NY, FL)
 Millennuim - Debbie Tye (2-UK)
 Neon Moon Cha Cha - Unknown (HI, TX)
 New York, New York - Unk (OR, PA)
 Pencil Thin What? - Scott Hartley (TX, NV)
 Poor Boy Shuffle - Vicki Rader (NJ,Ontar)
 Rockin' Hillbilly - Lana Harvey (AZ, NV)
 Saddle Up and Ride - Thompson (FL, NY)
 Silky Smooth - Chris Hodgson (IL, TX)
 Simply Irresistible - Thompson/Robinson/Livett/Robyn-April (NJ, WI)
 Slappin' Leather - Unknown (PA, HI)
 Slow Down - P Metelnick (Ontario, UK)
 Southside Shuffle - Unknown (HI, CA)
 Space Jam - Lori Let/Patti Willis (NY, NJ)
 Still The One - Bill Bader (AZ, NY)
 Swamp Thang - Max Perry (OH, NY)
 Sweetpea Cha Cha- P Metelnick (Ont, ND)
 Texas Stomp - Ruth Elias (MI, NV)
 Titanic - Unknown (PA, UK)
 Tush Push - James Ferro (PA, NJ)
 Unbelievable - Ian St Leon (CA, FL)
 Voila - Charlotte Skeeters (CA-2)
 What a Shock - Larry Bass (LA, FL)
 Whatever - Michael Barr (CA-2)
 Wouldn't It Be Nice - H McAdams (CA,-2)
 You & Me - Carmel Hutchinson (CA-2)

1 Teach

 101 - Peter Metelnick (Ontario)
 13MWZ - Sherry McClure (MI)
 2-Step Stroll - Unknown (NY)
 African - Unknown (OH)
 Alabama - Unknown (NY)
 All My Tricks - Joanne Brady (NY)
 All-Right-A - Michael Barr (WA)
 Alley Cat - Donna Aiken (IL)
 Almost There - Gary James (CA)
 Antidote - Rita Kyle (WI)
 Are You Kidding - Gail Tako (FL)
 As Long as You Love Me - N Mullinix (MI)
 Attitude - Evelyn Khinoo (CA)
 B-Leev-N - Jennifer Paisley-Smith (NY)
 Ba-Da-Boom - Denise Stone (MI)
 Back Again - Dan & Sharon Ross (VA)
 Backseat Boogie - Noel Castle (MN)
 Bad Bad Leroy Brown - Unknown (OH)
 Badly Bent Charleston - Unknown (MO)
 Bar Fly Stomp - Lana Harvey (AZ)
 Bar Room Romeo - Unknown (HI)
 Barstools - Unknown (AZ)
 Bartender Stomp - Unknown (OH)
 Bear Walk - Unknown (NJ)
 Believe - Jo Everhart (MI)
 Better Shape Up - B& S Wenger (UK)
 Billie's Cha Cha - Marie Noe (OH)
 Blackhawk Strut - Unknown (HI)
 Boogie Bear Cha Cha - R Thompson (Ont)
 Boogie Bop - Unknown (MN)
 Boogie Woogie Bugle Bop-M Cosenza (MI)
 Bootscootin' Boogie - Unknown (PA)
 Boss Man - Steve Hart (WA)
 Bread Line - Lana Harvey (AZ)
 Bright Side of the Road - Bill Bader (MN)
 Brown Gravy Boogie - Scott Blevins (MI)
 Buckaroo aka Pump It - Vicki Whitby (MI)
 Buckles 'N' Boots Boogie - Unknown (MI)
 Buffalo Boogie - Jackie Levesane (NY)
 Bull's Eye Perfect - Lana Harvey (AZ)
 C.C. Slide - Unknown (MN)
 Cajun Girls & Gumbo - Mike Sliter (CA)
 Cajun Mambo Walk - Unknown (HI)
 Cajun Moon Twist - Unknown (AZ)
 Cannibal Stomp - Lisa Firth (CA)
 Carmel Cha Cha - C & E Hutchinson (IL)
 Catfish - Unknown (UK)
 Cha Cha Con Tejas - Chris Hookie (IL)
 Cha Cha For Now - John Robinson (VA)
 Cha Cha Line - Unknown (OH)
 Cha Cha Loco-Thompson/Machado/Livett (NY)
 Chaka Chaka - Unknown (OH)
 Charleston Boogie - Unknown (HI)
 Charleston Cha Cha - J Hall/T Miller (OH)
 Chili & Cheese Cha Cha-P Metelnick (WA)
 Chocolate City Hustle - Unknown (CA)
 Chuckwagon Cha Cha - Joan Ansley (AZ)
 Cin-Cha-Nati Cha -Jamie Davis (MN)
 Circle 20 - Unknown (OH)
 Conrado Cha Cha - Rob Ingenthron (UK)
 Continental Polka - Louise Webber (OH)
 Copperhead Stomp - Unknown (OH)
 Cosmic Shuffle - Charles Thornhill (UK)
 Count Me In - Peter Metelnick (FL)
 Country - Fred Rapoport (CA)
 Country Rock & Roll Waltz - Unk (PA)
 Cowboy Cha Cha - Unknown (Canada)
 Cowboy's Sweetheart - Unknown (AZ)
 Crazy Legs - Greg Underwood (NJ)
 Cruisin/Stroll Along Cha Cha/My Maria - Unk (AZ)
 Dancin Feet - Susan Brooks (AZ)
 Dead End Road - JD Lansaw (WI)
 Denim Blue - C Wickey/Glenda Ortiz (FL)
 Denver - Unknown (IL)
 Derby Jump - Steve Hart (WA)
 Dizzy - Jo Thompson (HI)
 Do The Dance - Lisa Capitanelli
 Do the Kung Fu - Bev Cornish (Canada)
 Down & Dirty - Unknown (PA)
 Drink, Swear, Steal, and Lie - Perry (MN)
 Drive Me Wild - Scott Blevins (NY)
 Dum Dum-A-Diddly Dum- C Skeeters (CA)
 Earthquake - Susan Brooks (NY)
 East and West - Max Perry (AZ)
 El Diablo - Scott Stout (NJ)
 Electric Boogie - Unknown (Canada)
 Electric Warrior Reel - Knox Rhine (NE)
 Everybody Jam - Kathy Hunyadi (MI)
 Fever - Parry Spence (NJ)
 Fiesta Cha Cha - J & J Wells (Canada)
 Firecracker - Unknown (PA)
 Fisher's Hornpipe - Unknown (AZ)
 Flip Flop - Taylor Casey (FL)
 Flobie Slide - Flo Cook (NY)
 Flying 8 - Unknown (OH)
 Forever Young - Unknown (FL)
 Four Star Boogie - M Greenwood (AZ)
 Fresh - John H. Robinson (LA)
 Funky Cowboy - Vicki Vance (FL)
 Get Ready - Larry & Terri Boezeman (FL)
 Gettin' Over It - Unknown (PA)
 Ghost Train - Kathy Hunyadi (AZ)
 Gimme Little Bit - Vicki Rader (NY)
 Give It Up - Michael Barr (WA)
 Go On and On - Kathy K (AZ)
 Gone and Done It - Steve Carney (OR)
 Gone and Don’t It - Kelvin Elvidge (CA)
 Gotta Dance - Bev Cornish (AZ)
 Grundy Gallop - Jenny (UK)
 Hail Fire Boogie - Hillbilly Rick (VA)
 Hank Flamingo - K Wendell/D Paulhus (NV)
 Hanky Panky - Mary Bevilacqua (OR)
 Hardwood Stomp - Jo Thompson (NJ)
 Here U-R - Marg Jones (Canada)
 Hillbillyville - Hillbilly Rick (MI)
 Ho Ho Quick Quick Slow-R Fowler (Ont)
 Hokey Dokey - Marg Jones (Canada)
 Home Cookin - Don Deyne (OR)
 Honky Tonk Attitude - Unknown (NV)
 Honky Tonk Cha Cha 4Two-D Deyne (NY)
 Honky Tonk Dream - R Anthonies (UK)
 Hooked On Country - Unknown (IL)
 Horse 'n' Around - D & G Matties (UK)
 Hot Rod - Kole Dunn (UK)
 Hot Tamales - Neil Hale (CA)
 Hurricane - Sal Gonzalez (CA)
 Hysteria - Noel Brady (CA)
 I Ain't Listening (if it ain't country)-D Grant (NY)
 I See It Now - Michelle Burton (CA)
 If My Friends Could See Me Now-Evelyn Khinoo (CA)
 Jamaica Farewell - Bill Ray (NV)
 Java Jive - Thompson/Davis/Machado/Livett (TX)
 Jazzy Joe - Genean DeLaGrange & Friends (UK)
 Jitterbuggin - Bunny & Bruce Burton (FL)
 Jo's Cotton Eyed Joe - Jo Thompson (MI)
 Jose Quervo - Max Perry (NJ)
 Jump, Jive and Wail - G Underwood (MN)
 Jump, Jive and Wail - G Underwood (NY)
 Just A Little Bit - Max Perry (NJ)
 Just For Grins - Jo Thompson (UK)
 Keep In Touch - Unknown (PA)
 Keep it Simple - Jim Bob Szollosi (MI)
 Keep on Dancin' - Bev Cornish (Canada)
 Kick a Little - Kole Dunn (CA)
 King of the Road -Thompson/Machado (Canada)
 Kung-Fu Fighting - Alan Clarke (LA)
 La Cucaracha - Hank & Mary Dahl (OH)
 Let's Do The Hustle - Char Williams (FL)
 Linda Lu - Cindi Talbot (Canada)
 Linda Lu - Neil Hale (NV)
 Little Black Book - Unknown (OH)
 Little Jolena - David Sickles (NY)
 Little Rock Waltz - Unknown (PA)
 Little Squirt - Bill Bader (FL)
 Lonely and Blue - Unknown (AZ)
 Lonestar Bump - Gloria Johnson (OH)
 Longrider Hustle - EJ Foley (Canada)
 Look Whose Boots - K Blasen (CA)
 Lotta Hurt - Hass Marting (FL)
 Louisiana Lou - Chris Hodgson (UK)
 Low Down Dirty Boogie-J Paisley-Smith (FL)
 Makin' Tracks - Jo Thompson (Ontario)
 Matador - Unknown (OH)
 Me Too - Terry Hogan (CA)
 Memboria - Neil Hale (NY)
 Mermaid - Linda Yanders (NV)
 Million Dollar Cowboy 2000- B Bader (AZ)
 Minute Waltz - Bill Bader (OH)
 MMM Bop - Kelly Kaylin (FL)
 MMMMM Bop - Ron Kline (NJ)
 Mongoose Twist - Unknown (HI)
 Moter Runnin' - Linda Yanders (NV)
 Movin' In - Judy Cain (UK)
 My Girl Waltz - Cindy Truelove (WA)
 My Maria - Dan Albro (AZ)
 My,My,My Boogie Shoes - Ron Kline (OR)
 Neon Legs - Unknown (PA)
 Night Stomp - Unknown (HI)
 No Mercy - Ed White (MI)
 No Way Jose - Ray Kennedy (OR)
 No Way Out - Larry Boezeman (IL)
 Norma Jean - Dena/Donna Wasnick (OR)
 North Side Cha Cha - Joe Westin (MN)
 Paddy's Reel - Joe Warren (MI)
 Party at Charlie's - Charlie Milne (Canada)
 Party Down - Max Perry (NY)
 Pasadena - Cianne McGinnis (NV)
 Peace Of Mind - Carl Sullivan (IL)
 Peace Train - Julie Molkner (AZ)
 Poor Boy Shuffle - Kevin Richards (NY)
 Possum Trot - Barry Amato (TX)
 Practice Makes Perfect - H Hargnett (CA)
 Prairie Strut - Unknown (HI)
 Prancin' Pony - Neil Hale (CA)
 Precious Time - Beth Webb (MN)
 Raisin Strut - Unknown (PA)
 Rare Form - Larry Bass (Canada)
 Rawhide '98 - Max Perry (NY)
 Reaching Out - Charlotte Skeeters (CA)
 Really Heaven - Anita McNab (WA)
 Rebel Soldier - James Ferrazzano (OH)
 Reggae Cowboy - lGene Schrivener (NV)
 Ridin' - Dave Ingram (CA)
 Right On The Money - Dera (UK)
 Rio Grande - Holly Ruschman (MN)
 Rita's Waltz - Jo Thompson (AZ)
 Rock & Roll Waltz - Max Perry (HI)
 Rock Around the Clock - Unknown (UK)
 Rock It - Larry & Debbie Davis (NJ)
 Rockin' The House - Max Perry (NY)
 Rocky Bottom Waltz-Richmond/Nelson (NJ)
 Royal Ascot Waltz - Stella Wilden (CA)
 Rub-a-dubbin' - Charlie Milne (Canada)
 Ruffles - Unknown (HI)
 Rum and Coca Cola - HMcAdams (AZ)
 Ryedin' High - Chris Hodgson (UK)
 Saturday Night Boogie - Unknown (OH)
 Say What - Unknown (PA)
 Senorita Sway - Michelle Perron (WA)
 Shamrock Shake - R & R Padden (NJ)
 Shipwrecked - Hedy McAdams (IL)
 Shortenin Bread -Judy McDonald (CA)
 Shotgun - Unknown (OH)
 Silver Fox Shuffle - Allan Wright (UK)
 Ski-Bumpus - Unknown (OH)
 Slap Happy - Peter Metelnick (IL)
 Slappin' Leather - Gayle Brandon (CA)
 Slide On By - Gary Maxwell (CA)
 Slidin' Home - Jo Thompson (CA)
 Sling Shot - Unknown (NJ)
 Smiley's Turn - Karen Smiley (MN)
 Smokey Places - Michelle Perron (NE)
 Soldier's Joy - Jill Thompson/DMaher (MN)
 Solo Samba - Max Perry (NJ)
 Something Different- Phillips/Morrow (NY)
 SOS - Jo Thompson (AZ)
 Stampede Clap & Stomp - EJ Foley (Can)
 Stompin & Believin' - R & J Garber (MI)
 Strait Cha Cha - Sal Gonzalez (CA)
 Stray Cat Strut - Unknown (IL)
 Summertime Cha Cha - Max Perry (NJ)
 Sunflower - Unknown (MI)
 Sunny Mood - Unknown (PA)
 Sweet Nothin's - Gina Mello (CA)
 Sweet Pea - Gloria Johnson (Canada)
 Sweet Sixteen - Unknown (NV)
 Swing Thing - Peter Metelnick (Ontario)
 Swing Time Boogie - Scott Blevins (MN)
 Swingin' - Unknown (OH)
 Switchblade USA - John H. Robinson (NJ)
 Syncopations - Unknown (HI)
 Tailgating - Jim Krywko (NJ)
 Take A Letter Maria - Unknown (PA)
 Take Me To The Lochs - M John (UK)
 Tamworth Taillights - Sal Gonzalez (CA)
 Tango Hustle - Thompson/Perry (TX)
 Tell Me Cha - Knox Rhine (WA)
 Tequila Time - E & C Hutchinson (WA)
 Teton Mountain Stomp - Unknown (NJ)
 Texas Freeze - Unknown (NJ)
 The Clyde - Unknown (OH)
 The Scoot - Unknown (MN)
 Thin Sole Shoes - Unknown (CA)
 Thriller - Unknown (PA)
 Thunderfoot - Unknown (NJ)
 TNT - James Kellerman (NJ)
 Tornado - Unknown (CA)
 Traveling 4 Corners - Unknown (CA)
 Tropical Breeze - Chris Hodgson (IL)
 Tropicana Parking Lot - Patrick Riley (WA)
 Turnabout Shuffle - Sheriff N Taylor (MI)
 Twist Em - Jo Thompson (MN-2)
 Volcano - Unknown (NE)
 Walk A While - Steve Hart (WA)
 Walkin' On Me - Scott Blevins (FL)
 Waltz For All - Unknown (OR)
 Waltzing Matilda - Max Perry (NJ)
 Waterloo - C Donovan/B Watson (MN)
 West Coast Strut - Unknown (CA)
 West Side Shuffle - Barry Amato (NY)
 Western Strut - Unknown (NJ)
 Whippit - Unknown (NY)
 Whisperin' - Chris Hodgson (PA)
 Wiggles - Taylor Casey (FL)
 Wild Wild West - Unknown (NE)
 Witter Twitter - EJ Foley (Canada)
 Wizards Walk - Bill McGee (FL)
 Y2K - Davis/Thompson/Machado (MI)
 Yo Yo - David & Lorraine Speight (VA)
 Zoot Suit Jive - Max Perry (NJ)

4 Teaches

Blue Rose by Darrell & Doris Aldrich in IL, PA, NY, and NJ

2 Teaches

Barn Dance - Unknown (NY, IL)
Cripple Creek Shuffle - Larry & Terri Boezeman (NY-2)
El Paso - Unknown (OH, NJ)
Red Hot Salsa (partners) - Christina Browne (NJ, MI)
Rock n' Wrap - Kathy Sharpe (MI, NY)

1 Teach

Arizona Stroll - Shirley Babcock (FL)
Brushing The Hardwood - Jim Krywko (NJ)
Cactus Jack - Unknown (PA)
Country Rhumba - Unknown (FL)
Cowboy Cha Cha - Unknown (OH)
Cowboy Lambada - Unknown (NY)
Crowbar - Unknown (PA)
D-Vine - Unknown (PA)
Desperado Wrap - H & N Raymos (NJ)
Do The Salsa - Donna Marie (NY)
Dutchess - Unknown (NJ)
Fleetwood - Unknown (NY)
Four Score - Thompson/Driggs/Barrett (NY)
Indian Boogie - Vicky King (NY)
Indian Summer - Dan Albro (NY)
Keep On Dancin' - Larry & Terri Boezeman (NJ)
Lindy Star Shuffle - Unknown (PA)
Mexican Wind - Julie & Steve Ebel (FL)
Midnight Waltz - Jo Thompson (CA)
Palamino Stroll - Bob Izral (NY)
Rebel Strut - Unknown (OH)
Renegade - Unknown (OH)
Rocky Bottom Waltz - Mike Rachwal/Sandy Nelson (FL)
Sassy Shanay - Nancy Thompson-VerBryck (NY)
Serenity - Unknown (PA)
Shadow - Unknown (PA)
Shamrock - Unknown (PA)
Sidekick - Rick & Kathy Stearns (NY)
Sidewinder - Robert Weaver (FL)
Silk - Jim Ferrazzano (MI)
Sixteen Step - Unknown (NY)
Slipping Around - Unknown (OH)
Swing Switch - Unknown (FL)
Ten Step - Unknown (PA)
Teton Mountain Shuffle - Unknown (NY)
The Shooter - Jim & Sheri Nabozny (NJ)
Wagon Wheel - Unknown (MO)
Western Strut - Jody Rhodes (NJ)
Wooden Nickel - Rick & Kathy Stearns (NY)