Thanks to Jlknauff's topic, I think it's about time to have a little experiment... I have about 17.000 coop weight to play around with and suggest an experiment. I would do it to one of my own sites, but have no sites that meet underneath requirements. A) You should own the website B) website should be 1+ years old C) website should have decent rankings in Google at the moment D) no active link exchanges during period of experiment E) no major updates to the site during period of experiment The coop weight will be pointed at the homepage with 2 different anchor texts, equally spread. One will contain keywords for which the sites actually wants to rank for and the other will be something totally unrelated. The coop weight will be pointed to the website for 3 months and rankings for both keywords will be tracked from starting date till 6 months after beginning of experiment. Tracking will be recorded through DP's keyword tracker for all 3 engines, Google/Yahoo/MSN. For both rankings and number of backlinks recorded by the SE's. If you are willing to give it a try and your site meets all requirements, please post it here as everything should be visable to all who are interested. I know of some other experiments trying to basically do the same thing, but I would like to test it anyway. For the people who ask why, the reason is why not. I am not actively using the coop weight and the sites displaying them are only to play around with, and this, to me, feels like an interesting experiment to play with!