Q: What are my options for advertising on WordPress.com
A: There are currently three options. 1) Sites can get the No Ads option by itself or via our Value Bundle. 2) The default free option. At WordPress.com, we sometimes display advertisements on your blog to help pay the bills. This keeps free features free! 3) WordAds is the option where we can run ads on all of your pages and you share in the income.
Q: What do the ads look like?
A: WordAds currently has two placement options:
1) The Simple Ad option appears both at the bottom of the first post on the home page and at the bottom of the article pages. The ad size here is called a Middle Rectangle. A example of a site with this ad unit is TMCBlog.net.
For more information, please visit http://wordads.co/faq/
Dynamic Home Biz 
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