To learn more, read the contest rules. Please do not try to write voting scripts or game the contest for your app, otherwise you risk disqualification.

96
votes
elgg
96
votes
eGroupware
93
votes
WebSVN
92
votes
OpenFire
90
votes
Etherpad
87
votes
Subrion
87
votes
HumHub
86
votes
XWiki
82
votes
TACTIC
82
votes
Sentry