Being part of groups help you find treasure bags, you didnt even know about. Join the project management community where ever possible and of course keep a track of them. Jot the links in a notepad or word document and once in a while go browse.
Here's what I found from the linkedin group today:
If you are not giving certifications yet and just trying to figure out what the PM stuff is all about, this is a good chance for you to try them out and see. You will get an idea at least.
Why wait? Browse the site and thank the author.