Msg#: 3280432 posted 4:42 pm on Mar 14, 2007 (gmt 0)
CTR is a key part of the formula for MSN.
I talked to support about this and got a pretty extensive explanation. Suffice it to say you need a good ctr. Something interesting too, is there is a cut-off point. If your CTR falls below a certain level they just stop showing your ad altogether.