The article is a few months old, but it still surprises me. Medical Economics ran a quick review of the growing "doctor's lounge" movement and named PedTalk on its short list of sites to consider. Although it seems odd to be listed among the sponsored and commercially driven folks, it's cute nonetheless.
I will have to write back to them when PedSource opens up (any day now! I know you don't know what I'm talking about, but you will!).
You can read the entire, but brief, piece here.