Means of comminucation: forums, mailing lists, chat...
A key element of every open source project is communication. The following ways are available:
Mailing lists- Several lists are available, click to see the archives and subscription info
Forum- An alternative to mailing lists for those who prefer web to email
Blog- OpenVZ and virtualization related blog community at LiveJournal
Bugzilla- Submit the bugs you found to the bug tracking system; view/track/comment on bug reports