pay per post, using your existing blog

www.payperpost.com

This program promise:
"Search through a list of Opportunities, make a blog posting, get your content approved, and get paid. It's that simple. You can easily make $500 a month or more! Sign up now and we will give you your first $20! *Once you are approved for Marketplace Opps look for the Opportunity title "I signed up for PayPerPost." We are happy to be your first advertiser."

1. Sign up to be a payperpost Blogger
2.Submit your blog for approval
3.Complete an opportunity you like
4.Get paid via paypal

They also give a bonus of 20$ for the first post.

Didn't try them, but seem a good and honest program!