I want to adopt, because there are so many helpless children out there needing familys! Is there any way other than adoption agencys they are to expencive?

Try your local foster care agency.

In my town there is a section in the paper for adoptions, and they are usually teens that made a mistake and want their babies to have the best life possible. There are also sites like that. Let me search for you. It would also be easier to know where you reside.

Adopting a Child - Baby - Information for those seeking to adopt - from how to adopt to welcoming y (http://www.adopting.org/adoptions/adopting-a-child-baby-information-for-those-seeking-to-adopt.html)
Adoption.com - Adoption. International, Domestic, Waiting, Child, Baby, Infant, Adoption, Adopt, Adopting, Adoptions (http://www.adoption.com/)

I think every paper has a section for adoptions.

VERY seldom is it a birthmother advertising, though.

If you decide to adopt by NOT going through the foster care system, I HIGHLY suggest that you get either a lawyer or use an agency. Yes, it's expensive, but it's more expensive (and FAR more painful) in the long run to have the adoption revoked because something wasn't done according to the letter of the law.