What are some good websites that are free of charge that can help me find my bio

Question:

What are some good websites that are free of charge that can help me find my biological father, never met him?

I need some web sites that are free of charge that can help me locate and contact my birth father.

Best Answer - Chosen by Asker: There is a website with online tools at adoptees, genealogists, and those searching for missing persons at:
http://www.genesearch.com/people/...

At the bottom of the page are several resources specifically for those researching adoptees.