Tries its very best to install adware - there were at least 5 places at various stages of the installation that you have to explicitly opt out of, usually by different means each time, and it does its very best to try to catch you out. Be very, very careful when installing this and only click the "next" button on any page of the installer - including the last! - once you're 100% sure you've opted out of all adware.
keepvid.com - According to http://www.malwareblacklist.com this site contains an exploit that can harm your computer.
It was detected and reported in July/August 2011. Take care when visiting this place.
You can find more details with a search on keepvid.com at http://www.malwareblacklist.com