I am considering making an ultimate guide to BA. I have a beta running here:
www.carmichael.nl/faq
I plan to include everything from lounge access through seatmaps to the official travelagents guide to BA (VERY handly little 20Mb of PDF's

).
The site let's you search, add things and even save/download parts as a PDF.
If I get 50 individual responses here I'll make it. It will take up so much time that I don't plan on doing just based on a few replies.
If anyone wants to help add content drop me an email and I'll make an account for you.