I mainly use these:

http://www.highdefdigest.com/

Lots of info. Appalling PQ reviews - nearly always miss problems. A bit like Mark Kermode's film reviews - whatever he says, often the opposite is true.

http://www.dvdtalk.com/reviews/list.php?reviewType=HD+DVD

Much better, but still not crticial enough.

http://bluray.lindsite.dk/

No longer maintained. Shame.

Pre-release info:

http://hddvd.highdefdigest.com/amazonpreorders.html
http://Bluray.highdefdigest.com/amazonpreorders.html

Mark

My Music : My Cinema