Ad Age Digital Fact Pack full of news nuggets

Abbey Klaassen of Advertising Age reports that Ad Age's Digital Fact Pack is available to download for free. Among the highlights in the second annual Digital Fact Pack are these gems:

-- The top 10 online properties took in 99% of 2006 gross online ad revenue. Or, as Klaassen puts it, "the Long Tail of the web has a big, fat head."

-- MySpace and Facebook continue to defy gravity, growing 72.5% and 59.2% (Feb. '07 vs. Feb. '06), respectively.

-- The top US Search engines are Google (51.83%), Yahoo Search (15.94%), MSN Search (9.13%), Google Image Search (6.02%), and Ask.com (2.15%), according to Hitwise. That's right, Google Image Search has a higher market share than Ask.com!