- @avantgame – Jane Mcgonigal
- @RomanRackwitz – R0man Rackwitz
- @TylerAltrup – Tyler Altrup
- @Scott_Golas – Scott Golas
- @NicoleLazzaro – Nicole Lazzaro
- @marigo – Marigo Raftopoulos
- @schnaars – Scott Schnaars
- @SThielke – Sebastian Thielke
- @mherger – Mario Herger
- @gamificationco – Gamification co
- @daverage – Me, Andrzej Marczewski
- @gzicherm – Gabe Zichermann
- @kwerb – Kevin Werbach
- @amyjokim – Amy Jo Kim
There are many many more – check my twitter list http://twitter.com/daverage/gamification/members
