Pelican Parts-Great place for all parts Porsche/BMW, and they have a great 924/944/968 BBS
944 Central-The original. They have a great section on readers rides, stats, and general information.
CarDomain-Cardomain features almost a million cars posted by owners. You can read about the different cars and view pictures.
944 Racing-Aftermarket performance parts for 944s.
911 Series/Information and History-911 History, and Specifications.