Where to look for review in camera/lense

Since Economic is so tough , every spending need to think twice and triple before we buy.

I am trying to decide Canon EF-S 18-200 mm 1:3.5-5.6 IS or Tamron 18-270mm f/3.5-6.3 Di II VC LD Aspherical IF Macro .

Here are some link which i found it useful for camera /lense review.

http://www.pbase.com/lightrules/lenstests

http://www.photozone.de/

http://www.slrgear.com/reviews/index.php

Instead of getting professional review , we can either asking help from camera forumer around as well.

I will continuous to update my list so that it benefit everyone else.