can anyone tell me how can i use yahoo for learing and for increasing my knowladge,also i want to know that how can i make good hits of my site with the use of yahoo?

Yahoo search engine is strong enough to help you with all your queries relating online, as the engine provides you with all the links they have in their database.

Try using yahoo 360 and yahoo answers. They both will give you valuable suggestions for all your queries. I have done that and was answered by many.