I was setting up my account in Twitter this afternoon and within minutes I’ve got 2 followers. From one of the follower’s blog I found an interesting article which has a link to the following website.
It is not an in depth analysis but rather brief overview of where are the money come from for these companies. It is interesting to see them in one place.
http://rcs.seerinteractive.com/money/
How Do Tech Companies Make Their Money