WindSun - 2:18 am on Feb 3, 2003 (gmt 0) <.1 is not zero though.
"Google suggestions for more specific phrases it always says the forecast clicks are <0.1 i.e. zero..."
In fact probably 1/4 to 1/3 of our keywords say that. Some only get 3-4 hits a day - but on one the buy rate per click through is 27%, and the CTR is over 10%.
Google does not kick ads out because they have a low impression rate - it kicks them for low CTR. If you have a word that only gets used 10x a day, but gets clicked on once, it will be fine as far as Google is concerned.
Granted, it takes time to find all these obscure keys, but the upside is that we are only paying 5 cents for most of them.
<.1 is not zero though.