All of the ones I listed come usually come from the hosting site. I've been verifying cookies in my browser for a long time and the repeated cookie names don't come from third-party sites.

I know the __utm* and the s_* cookies are for tracking website usage. The basic way they work is to give you a uniqueID and then see what pages you load from that site with it. This data is used to see which pages are popular, which links are more often followed, how often people come back to the site, and so on. There's more to it than that, of course, but that's the purpose. Of course, there are a lot of people who don't understand that's what those cookies are for, or don't want to be individually tracked, or don't like cookies generally, so such statistics have high error margins. I see a lot of sites use several methods, perhaps for this reason.

Of course, I may be one of the few in IWETHEY who has worked with some of this on the website. That may explain the lack of response so far...

Wade.