Google PlusSince last month there is also a Hippo CMS Community on Google Plus. This is mainly a communication channel for spreading news, information about Hippo and for bringing together all the Hippo users that use Google Plus as their 'social network'.
Hippo Community ForumCurrently the best resource for getting (technical) feedback or asking questions is probably the Hippo Community Forum.
Stack OverflowStack Overflow is becoming the site to find all your development answers these days. If you want to ask questions on Stack Overflow about Hippo CMS, be sure to ask the question with the tag 'hippocms'. By doing so you can get answers by other Stack Overflow users and members of the Hippo team.
IRCA community initiative recently started (thanks to Yassine Elassad) to also have a self-help IRC channel available on freenode. The channel can be found at:
You can find community members and some Hippo developers being present in this channel.
The Hippo blogOur official Hippo CMS blog is the main place where we post about Hippo CMS and Content management in general. You will be able to get a heads up on insights, upcoming releases and tips & tricks.
If you reached all the way the the end of this post you will see that Hippo is present on different channels. We hope to see and meet you in any or all of them. Let's stay connected!