I think google has done a much better job of targeting services they know they can integrate into their core. Yahoo has really just had a bunch of different si

I think google has done a much better job of targeting services they know they can integrate into their core. Yahoo has really just had a bunch of different silos operating (for the most part) on their own. When the founders lose their ability to control the product and their economic incentives, then they're really fked. Facebook has integrated their acquisitions' technology in some cases, but it seems they're mostly in it for talent acquisitions. They've done a good job so far in retaining (they're still pre-IPO) but we'll see what happens when they get old and some new hotness appears at school (might take 10 yrs) Scorecards: http://en.wikipedia.org/wiki/List_of_Yahoo!-owned_sites_and_services http://en.wikipedia.org/wiki/List_of_Yahoo!-owned_sites_and_... http://en.wikipedia.org/wiki/List_of_acquisitions_by_Google http://en.wikipedia.org/wiki/List_of_acquisitions_by_Google