When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and visit your page.
The CodeTown homepage brings some of the things you create to Codetown's homepage. So, if you blog something on your personal page, it will also show up on the Blog section of the CodeTown homepage...for a little while! It will stay there until enough people blog and become part of the most recent blogs. Same with Notes.
Groups are just places where people with like interests get together. You'll see Discussions in Groups, and you can subscribe to the stuff that goes on using the RSS feed.
The Forum is a place where Discussions live, too. And, Discussions can be in a Category. You can create your own Discussions anytime you want.
You see the place for music, photos, and videos? You can put them in here, too. Be kind, rewind...and honor copyright.
All the legacy sites and mailing lists are intact. So, if you want to post a job, just go to the Jobs Mailing List. If you want to sponsor a meeting, contact Mike Levin at email@example.com. We're all technical here. So, you can feel right at home.