Here's a game that should be almost as fun as Sudoku -- sort these numbers to figure out which company has the "proprietary monopoly" on consumer Internet services.

Challenge 2: Can you add them up to $44.6 billion?

Challenge 3: Can you arrange them in a way that gives Google a good antitrust argument? Bonus points if you factor in the value and utility of search vs. Web mail.

The stats are from a media advisory that comScore sent to media outlets today. It also offered a summary:

-- Google Web sites had nearly 588 million visitors globally in December, more than either Microsoft or Yahoo, but the combined Microsoft-Yahoo had 665 million visitors.

-- Google's search market share is 58.4 percent in the U.S. and 62.4 percent globally, vs. the combined Microsoft-Yahoo share of 32.7 percent in the U.S. and 15.7 percent globally.

-- Yahoo and Microsoft are the clear leaders in e-mail and instant messaging; combined they'd reach nearly 77 percent of the IM audience worldwide.

The stats: