Thanks for these suggestions @okznokz!
For a chat room, we do have an IRC, but you can access it without a special client (if thats what you were worried about) at https://blog.0x00sec.org/irc
We do have a section for community members, but it isn't really developed. This might actually be a really excellent idea. I'm trying to keep this accessible to newbies & lurkers, where at the same time keeping the community close; I understand this is a difficult line to balance, but I will definitely look into these suggestions.
There are many posts to help newbies, but I'm not sure where we would incorporate a newbie section? Perhaps in the how-to category?... I think this is already acomplished with categories.
I think we can always learn something from anybody, beginner posts aren't that bad, but we can always navigate using the Categories section if we don't want to see the newest posts or certain posts.
As for groups, I can see the idea, but we are a community, and not a segregation of little groups. Sure we have our high-level programmers, our low level guys, our social engineering lot; But in the end somewhere our roles and interests overlap. Sure we might favour one topic over another, but in this industry we need to able to learn and understand the rest.
As @Phoenix750 has said, Google + Twitter hit counters can be a little malicious, however I wouldn't be dead against it. At the moment if you click on the little chain/link icon, you get options to share to Twitter, Google+, Facebook + Email.
A list of live users might be an idea, however I don't really see how much it's needed with the IRC? We can of course look into these things; but I'm not sure how much of a difference a lot of these things will make on the users experience. We're not trying to make a Facebook/G+ for Hacking and InfoSec. We're trying to make a platform easy to share knowledge and solve problems.