Aethera: www.thekompany.com/projects/aethera [1]
CalDAV: ietfreport.isoc.org/idref/draft-dusseault-caldav [2]
CAP Draft: ietfreport.isoc.org/all-ids/draft-ietf-calsch-cap-06.txt [3]
Citadel: www.citadel.org [4]
GroupDAV Draft: www.groupdav.org/draft-hess-groupdav-01.txt [5]
Hula Server: hula-project.org/Hula_Server [6]
Kolab2: www.kolab.org [7]
OpenSync: www.freedesktop.org/Software/OpenSync [8]
MultiSync: multisync.sourceforge.net [9]
Noodle Project: noodle.yacoi.com [10]
OpenGroupware: www.opengroupware.org [11]
OPEN-XCHANGE: www.open-xchange.org [12]
SOGo: sogo.opengroupware.org [13]
SyncKolab: www.gargan.org/extensions/synckolab.html [14]
SyncML: www.openmobilealliance.org/tech/affiliates/syncml/syncmlindex.html [15]
UW Calendar: www.washington.edu/ucal [16]
Links:
[1] http://www.thekompany.com/projects/aethera
[2] http://ietfreport.isoc.org/idref/draft-dusseault-caldav
[3] http://ietfreport.isoc.org/all-ids/draft-ietf-calsch-cap-06.txt
[4] http://www.citadel.org
[5] http://www.groupdav.org/draft-hess-groupdav-01.txt
[6] http://hula-project.org/Hula_Server
[7] http://www.kolab.org
[8] http://www.freedesktop.org/Software/OpenSync
[9] http://multisync.sourceforge.net
[10] http://noodle.yacoi.com
[11] http://www.opengroupware.org
[12] http://www.open-xchange.org
[13] http://sogo.opengroupware.org
[14] http://www.gargan.org/extensions/synckolab.html
[15] http://www.openmobilealliance.org/tech/affiliates/syncml/syncmlindex.html
[16] http://www.washington.edu/ucal