Your thread is too shot that's why could not understand that what you wanna to say..? Well Yahoo answers are good way by which we can get a huge amount of knowledge and also can get a back link.
I don' t see why not? Everyone else seems to be using Yahoo! Ads so I can't seem to think of a reason of you being left out
Yahoo ads are pretty good. Although I currently use AdBrite, but I am thinking of switching to Yahoo. Otherwise please explain yourself a little more if you are expecting to receive answers on a different topic =)