How come Yahoo shows I have hundreds of links to one of my pages but google shows I have 11....all from DP not from any of the people who i know are linking to me?
Google doesn't updated frequently and it also does not show all links. Displays only those it feels are important. It is subjective.
Quite true. Google has its own set of quality parameters that the links would have to adhere to in order to count as back links. More stringent than Yahoo and hence the difference.