TV Junkie,
We also noted Whitman's issue with an undocumented worker in a previous post. http://blog.nielsen.com/nielsenwire/politics/poli...
And we do so only as that issue and the one above impacted the overall buzz around those candidates. We don't endorse or lend support to any campaign.

Nielsen takes privacy seriously. We recently updated our policy to include an interactive FAQ. http://en-us.nielsen.com/content/nielsen/en_us/pr...

John,
Bing is combined with overall MSN/Windows Live searches and is #3 on the list.

Nielsen Global Social Media Stats

Andrea, the above link has data for a number of countries including Italy, which boasted the highest time on site per user.