Scour and Wabbadabba Search and Win Sites

I just signed up for these so I can't do full reviews yet, but if you want to sign up and try them out with me, I'd greatly appreciate it. :)

Scour.com (aff): Earn up to 3 points per search -- one for doing the search, one for rating the results, and one for commenting on the results. Points can be earned for the first 100 searches per day, for a total of 300 points per day, plus earn 25% of what your friends earn. 6500 points = $25.

Wabbadabba.com (aff): This is a UK site. Up to 150 searches a day qualify to possibly instantly win prizes including Amazon UK vouchers. I'm not sure how that'd work for US members -- if they can be used on the US Amazon site or if they can be traded or sold. Will post a review if this turns out to be something worthwhile for US members.

If you have experience with either or both of these sites, please leave a comment -- thanks!