also if yahoos new ppc software “panama” (i think thats what its called) which roles out next year doesnt work as well as expected, dont be suprised to see yahoo search powered by google.
the same with me.
I also receive the most my traffic from Google, 70-90%
MSN and Yahoo traffics are very small, but last month I got traffic from Yahoo ~25-30%, it was a suprise for me.