After having read ‘the Game’ by Neal Strauss, I decided to look if the internet communities he describes on the pickup game really exists and back up his claims. These guys have taken a good look at what works when picking up women and tried to apply rules to their behaviors, drastically improving their chances of a successful pickup.
Cliff’s List is an archive (and still growing) newsletter for the speed seductionist.
Dutch Seduction is the Dutch lair of pickup artists with a lively local forum.
Natural Game has a lively forum going on as well.
The seduction community toolbar by Diabolik is a labour of love, allowing you to search techniques through the community without hitting strange Google results.