NFLDraftScout.com does an excellent job of evaluating and ranking long snappers and they have just updated their rankings of long snappers for the 2011 NFL Draft. Below are the 16 snappers that have been ranked so far.
1 Christian Yount LS UCLA 6-0 240
2 Keenan Bratcher LS Memphis 6-2 235
3 Patrick Scales LS Utah State 6-4 228
4 Danny Aiken LS Virginia 6-4 260
5 Neal Dahlman LS Bowling Green 6-1 240
6 Aaron Feld LS Mississippi State 6-1 225
7 Cooper Stephenson LS Southern California 6-3 215
8 Scott Albritton LS Colorado State 6-3 228
9 Zach Enyeart LS Washington State 6-1 257
10 Jordan Van Royen LS Wyoming 6-0 234
11 Jake Ekkens LS Central Michigan 6-4 245
12 Jerry Barlow LS Temple 6-3 215
13 Zach Nolan LS Stanford 6-4 226
14 Brandon Long LS Rice 6-0 225
15 Kurt Schnittger LS Grand Valley State 6-3 255
16 Andrew Schulze LS Iowa 6-5 260