youfoundjake - 4:15 am on Feb 24, 2010 (gmt 0)
I just did a web speed test on one of the sites listed, and it took 37 seconds to download the page. The other site looks like they just list all the results from amazon.co.uk. The third site appears to be a search engine that uses google search to pull in the results. No wonder these sites are getting penalized, I can't see what real use they provide to me.