When I see what users are online and such, some of them have a "+" next to their name although I only see it on a couple people, like Chris and Jen. What does that mean? I'm guessing something that was added while I was away from here is the only thing I can come up with.
Dusan is correct. The "+" means those users are on your friends list. You should be able to see in your profile the friends you have added under the "Friends" section.