Online forum?

Online fora are for me one of the best sources of information...
PhotoshopTechniques, Greg VanderHouwen's forum is the equivalent of my online home. There, you'll find a lot of informations and countless helpful and fun members...
Adobe User 2 User forum http://forums.adobe.com/community/photoshop/general is also a place worth visiting for the simple fact that quite often, the Photoshop Software Engineers are posting there!