I remember several years back when Go.com and Goto.com got into a little tiff over trademark infringement. I think it was over having a similar logo or something. Anyway, they worked it out and Go.com started displaying Goto listings. At some later date--probably the second their settlement expired--Go.com switched to Google. I'm not sure when it was. I hadn't even visited go.com for about 4 years until today. (Infoseek used to be my favorite before Disney took over and screwed it up!). The reason for my visit today is that Overture announced that Go.com will be switching back to Overture. This will also include Disney Online and other reated sites making the switch to Overture, or Yahoo or whatever they're calling themselves today.
I'm not sure what kind of traffic Go.com gets these days, but it's nice to see Overture winning some business back from Google for a change. I love Adwords, but I think it's good for the paid search industry to have more than one main player. More than 2 would even be better, so we'll see what happens with MSN.