Don, where do you live? A lot of the Porsche forums serve a specific geographic area. For example, around here
www.renntech.org/forums/ is pretty useful. The members get together for tech sessions - which is needed for Porsches. There are NO aftermarket service manuals for Boxsters, and the real Porsche one is about $1,500
Perhaps the most well-known Porsche site is
http://forums.pelicanparts.com/ , affiliated with a major on-line parts supplier.