Here are some free advertising sites I found...
Adgridwork.com - I tried this one on my other blog.. 3 easy steps to start..
1. Add your site to their network
2. Display targetted ads on your site
3. Your ads will appear on thousand of sites..
Ablewise.com - This site is quite like a social networking site.. They have like a community.. You can post your ads free. Plus they have tools, a messenger, and an affiliate program..
