Did you know that I am #78 on the All Time "Top Users" list at Stack Exchange's Database Administrator's site? I was surprised myself.
Here is a link to my information page.
Stack Exchange provides sites to ask questions about a number of topics ranging from technical things like databases or programming to less technical things like bicycles or philosophy. As a quick introduction, here is a link to their About page.
Pick a topic at Stack Exchange and and learn from many top people in their fields. It is always informative to see the problems that people run into over and over. Better yet, create a login and help someone out.