Marketwatch's Bambi Francisco dished up some juicy holiday web stats this morning, courtesy of HitWise. Of little surprise: that 25 percent of traffic to online retailers, roughly 19,000 by Francisco's estimates, comes via search engines. Somewhat surprising: even big-name retailers with obvious URLs, like Walmart.com, get a chunk of traffic through search engines. Completing surprising: Social networks like MySpace are now steering members to online retailers. That's good for News Corp.'s Rupert Murdoch, who needs to show that its $580 million bet last year on MySpace generates more than just headlines.

Still, it will be interesting to see how the MySpace ad strategy plays out in the coming months given signs that the mall-like vibe on MySpace is beginning to chafe.

Meanwhile, Hitwise exec Bill Tancer has an interesting list of the top 33 Google properties ranked by their relative market share. At the top, not surprisingly, is the Google home page, which accounts for 78% of Google's traffic. The runner-up, about a marathon-length behind: Google Image Search, at 9.2 percent. And at the bottom? The endearing Google Moon.