Highly Profitable WordPress Plugin - $7K net/ mo
Details
For sale is an established WordPress plugin, which creates advanced Facebook Apps and custom pages. The industry-leading site turned over $113K in 2012, of which $84K was taken as profit. Most of this was seen in the second half of 2012 following the new product launch (July 2012).
The site comes with several ready to launch sites/ products and a mailing list boasting around 10,000 members.