You guys are right about the physical learning but that's not the whole story - I also was qualified as an RYA windsurfing instructor to level 3 as well as sailing etc. and on the level 2 weekends etc we had to cover a certain amount of theory and background information.
I think any site of this type should state foremost that recognised/certified instruction is the best way of learnng our sport.
However there is a HUGE amount of technical information that getting on a huge hifly with a beginners rig for a weekend doesn't teach you.
I have been learning in this sport for the last 20 years - I have a degreee in Chemical Engineering and studied fluid dynamics but still would struggle to explain why a curved swept back fin gives better manouverability and a straight one
is better for upwind performance.
Once past the basics (say after your 'start windsurf' course

) most people strike out on their own and that's when all the knowledge we have is most valuable and they could read up on the different disciplines, types of sail, board, fin etc and what all the different design features might mean.
Imagine a basic diagram/picture of a windsurfer - you click on the board and get a more detailed picture with a basic introduction. click on any part and you go deeper and deeper into the detail.
This is the basis behind most 'wiki's' or encyclopedias - a background and technical explanation of the subject (possibly even a bit of history? )
you're right I jumped on George_b's post about writing instructions on how to windsurf - my idea is more a case of let's all contribute to a site that explains everything we know about windsurfing ?
PS I deleted your extra post - I've no idea either....