I've seen a lot written lately about the many good things available at Diet.com (www.diet.com). It's a great site with a lot of useful and fun information. The "Latest Diet News" section is lively and entertaining and their Message Boards and Recipes pages are fantastic.
The editors don't take themselves too seriously either and have fun with the content. Here's another tip when visiting Diet.com. Visit their "Celebrities and Diet" blog. They regularly bash brainless celebs that are pushing worthless weight loss and workout plans. It's great! We're only interested in real weight loss ideas here -- not worthless stuff from those Hollywood halfwits.