Here is a list of additional websites streaming the event live, including a HD version on MySpace:

MySpace (HD)
http://celebrity.myspace.com/index.cfm?fuseaction=celebrity.icon

Usatoday.com
http://www.usatoday.com/life/people/2009-07-07-jackson-memorial-news_N.htm

BBC
http://news.bbc.co.uk/2/hi/entertainment/8137700.stm

MTV
http://www.mtv.com