Chess in England, a Facebook community page.
I’ve created a Facebook community page, for grass-roots chess in England:http://on.fb.me/JlMijp. You can advertise your chess club, event, product, website, tournament, blog, service, whatever, by – (a) posting a link on the page, and (b) liking the page. The idea is simple enough: each link makes it more informative, and each like makes it more prominent. The more people contribute, the more useful it becomes.