Hi, I've built a c2c site for swapping and selling your products. And it includes two special categories "service" and "knowledge". You can post your business service information and descriptions , ezine and ebook ads there. Besides, u can also build your social network here. :D
It's a free service. No listing or commission fee required. Your item will be visible for maximum 120 days. You can modify, reactivate or close the post at any time. You are also able to view all your posts in a centralized user account management.
Have fun~
http://www.uuswap.com