“The deal will see Microsoft pay $8.5bn (£5.2bn) for Skype, making it Microsoft's largest acquisition.
Luxembourg-based Skype has 663 million global users. In August last year it announced plans for a share flotation, but this was subsequently put on hold.
Internet auction house eBay bought Skype for $2.6bn in 2006, before selling 70% of it in 2009 for $2bn.
So what's in it for Microsoft?
For starters, the firm gets well over 600 million users who make Skype the world's largest phone company for international voice calls.
More importantly, Microsoft buys into a lot of potential.
Marry Skype's software with the Xbox Kinect and an HD television set, and Microsoft can make a powerful argument for getting into millions of living rooms.
Think beyond teleconferencing for the whole family: there's one-on-one training, home schooling, even patient care delivered remotely and in vision.”
See more at http://www.bbc.co.uk/news/business-13343600