Hi Are there any automated marketplaces for seo services like articles submissions, blogposts, forum posts etc ? I mean sites where the buy and sell transactions are automated eg. where you can post your services with prices and buyers can either bid for or buy your services at the prices you set. Something similar to domains / website marketplace like sedo.com except instead of domains/ websites, it will be services like article submissions, blogposts, forum posts etc. If there is no such script, how difficult will it be to modify from similar scripts? Thanks