The Full Wiki from Australia searches the web to find sentences similar to those in Wikipedia articles, complete with their citations for you to copy and paste into your work.
The goal of The Full Wiki project is to make "community driven reference content" into unique and useful information. There is a left-side navigation companion that highlights the part of the article you are currently viewing. There are travel guides, quotes, and study guides on the same page, as well as Google maps for every article.
See a video overview of The Full Wiki
The Full Wiki promises to soon have timelines for 3 million topics. The Full Wiki is in beta and currently has only a few thousand articles processed. It is in the process of getting more servers, so they expect to soon have all of Wikipedia done.
DISCLOSURE OF MATERIAL CONNECTION: http://cmp.ly/0