ARE YOU LOOKING FOR A GREAT WORDPRESS SPONSORSHIP PLUGIN FOR YOUR WEBSITE?
TRY THE SPONSOR MY ARTICLES WORDPRESS PLUGIN
With this plugin you can start to monetize your website with sponsored ad placements at the bottom of your articles or posts.
It has lots of features including the option to setup your sponsorship to be Time Based or Lifetime. There are too many features to list so just check out their website
There is a FREE version you can download as well.