My google, alexa and yahoo links?

If I check my backlinks in google webmaster tools, it shows 252 domains linking to me. But alexa shows only 3 and yahoo only 22. Why yahoo and alexa is too silly?

their both pretty unreliable to say the least. Continue marketing ur site and u'll do fine, w/o looking at those 2.

Different search engines have different methods of defining links. If you want to improve your link popularity, just work at the general amount of links. The more links you have, the better and soon all the Search Engines will show more backlinks of yours.