Satellites.co.uk, great satellite Forum
Forum for satellite hobbyists, whether it be for Sky or European satellite viewing

DP Now, Digital Photography Forum
Digital Photography Forum, covers pretty much everything on that subject.

Four Thirds User forum
Friendly Photography Forum for Olympus, Leica and Panasonic 4/3s camera owners

Four Thirds Camera/Photography Forum
Forum for those with fourthirds system digital SLR cameras

Mobile Expert
Mobile Phone Forum, with software and advice on phones and usage