The forum is definitely dead these days, but the marketplace is still "somewhat" active, and there are a few skype groups with active daily participation. It seems like no forum has really risen to take its place. More like the SEO guys went one way (BHW, Skype groups), the PPC guys another (private forums, other skype groups).

A lot of the big players are still active and still making money. If you want an invite to a Skype group shoot me an email.