The Zimlet gallery is the best place to find and publish extensions for Zimbra.
Zimbra and Seafile: the New Collaboration Dream Team – Seafile
Subdomains 10000, PDF, Computing
seafileblogs – Seafile Official Blog
Dir Antichat, PDF, My Sql
GitHub - Zimbra/zm-web-client: zm-web-client for Zimbra
Zeta Alliance · GitHub
Zeta Alliance - Users
Zeta Alliance - Photos And Files Zimlets
cn not samAccountName · Issue #11 · Zimbra-Community/ADPassword
WebDAV - Zimbra :: Tech Center
ZetaHub
DE] PROJECT CONSULT Newsletter 2006