Cast your mind back to November of 2008.

Unlike many political commentators I suspect your memory of the time is vivid, filled as it was with layoffs, plummeting investments, layoffs, negative profits, layoffs, the failure of huge financial institutions and layoffs.

One might almost think something important went on back then.

Why exactly does Microsoft care about search?

Microsoft is a software company. Sure, it has made forays into hardware (keyboards, mice, joysticks, and the ever-semi-popular Xbox), on-line services (the ever-semi-popular MSN.com) and information delivery (the ever semi-popular MSNBC).

What pays the bills is the sale of software licenses. Microsoft is a software company.

So why Bing.com and the Yahoo! acquisition-turned-joint-venture?