Well, you could always try
www.wizards.com since they bought out TSR awhile back. As far as meeting the people to play with try and find an RPG store in your area and check it out. They normally have boards where you can post notices regarding player/DM matchups.
Also, not that I advocate piracy or anything, but you can find most of the core rule books on p2p services so you can start learning the rule.