beren - 8:50 pm on Dec 2, 2005 (gmt 0)

I've been running ads through MSN AdCenter for about a week.

I'm getting some clicks (as reported by MSN and my own logs), but I am curious: I have yet to see my ad show up on an MSN search. When I search for my keywords, only Yahoo Search Marketing (Overture) words. I even raised my bid on MSN to a higher value than any of the Overture bids, but my ad does not show. It must show (very) occasionally, but I can't figure out why or when.

A representative from MSN called today and I mentioned this, but he couldn't figure it out either. It's a mystery.