<http://schema.org/description>
"There are a lot of other programs that are similar to Ad Sense. Unfortunately, none of them pays as much as Google does. The reason for this is simple, Google owns both the Ad Sense and Google search engine. Combined advertising on the world's most popular search engine and various web sites will always be more attractive than just advertising on our blogs. That is why other programs must lower their prices in order to attract advertisers and at the same time, this means lower payment to publishers - that is us."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.webincomejournal.com/4570/wordpress-announces-launch-of-wordads-an-alternative-to-google-adsense.html>