I dunno bout you lot but there are a heap of webpages I check daily (this included), what about you guys? Some of the others i check are below.

Apple.com/trailers (of course )
www.aintitcool.com
www.darkhorizons.com - Corona as well
www.fark.com
www.news.com.au - www.cnn.com
www.dansjp3page.com
http://maddox.xmission.com/
http://skatsland.tripod.com {my blog, and links to my friends...}
http://www.weebl.jolt.co.uk
as well as http://www.soundtrack.net/trailers...

thats just a couple..