Microsoft Deal Strategy from 2009-2012: Yahoo, Nokia, Skype, Nook.

This is the front page of Tuesday May 1st's Wall Street Journal. It's a well done graphic overlaying Microsoft's big-dollar entrances into "markets where it lags behind rivals": - Search: Yahoo (2009): Microsoft's billion-dollar+ deal to power search and ads.

- Mobile OS: Nokia (2011): billion-dollar+ deal to push Windows Mobile OS

- Social / Video: Skype (2011): $8.5B acquisition

- Mobile / Tablets: Nook (2012): $605m investment to bolster tablet strategy

It's an expensive but necessary (?) avenue into three massive verticals that, as WSJ notes, Microsoft is far behind in: search, social, and mobile (OS + hardware). It is marks about one of these big, billion-dollar bets a year (four deals over the 2009-2012 period).

Price aside (Skype in particular feels very expensive unless deeper integrations in Office & on XBox emerge quickly), the Nook deal is is the one that strategically feels odd. Windows 7 users love the product - but the Nook is so far behind iPad and Kindle, that it feels as though Microsoft is better served entering the tablet market elsewhere OR focusing primarily on phones and then paying-up when the 3rd place tablet-provider has greater share. Of course that's my take from a very, very distant seat.