Stop me if you’ve heard this before.

Google’s share of U.S. search was up again last month…

Oh, you’ve heard it?  Good.  Google up a fraction, according to comScore.  Yahoo down a fraction.  Microsoft holding around 11%.  Ask and AOL combine for a little over 6%.

It’s a big world.  Billions of searches.  One tiny percentage of one percent is huge.   And that’s what comScore calls the core search market.  Add in properties like YouTube, which has more searches than Yahoo! according to this study and Google laps the field.  comScore sizes overall search at 22.2 billion searches with Google properties accounting for 60% of search and Yahoo! accounting for 11%.

There are really two places you need to be aware of as a businessperson:  craiglist at just under 3% and Facebook closing in on 2%.  I think the Facebook search number is grossly underreported.  Even if Facebook’s search number is accurate, comScore says Facebook search traffic grew 10% between January and February.

When you’re dealing in the hundreds of millions of anything, ten percent is a staggering number.