Hi, I'm selling 135px X 135px advertising space on a social bookmarking and networking site - http://www.orangify.com We have over 6600 members, 17k pageviews daily, alexa 69k, google pagerank 4, 2 and a half year established domain and over 13k articles submitted! You can find the space by clicking any article and scrolling down for the grey '135px' box. Cost is for a 3 month contract at $15. Very cheap! Thanks