Free: Enjoy The Wall Street Journal Online Courtesy of Bing

While searching for an article on the Wall Street Journal online today, I found the following banner ads from Microsoft’s Bing strewn across the site.

Bing Wall Street Journal

When I initially logged into my account via Firefox, the Bing banner ad consumed over half my screen then it shrunk to the size above.

According to their display ad below, Bing has also made the online version of the Wall Street Journal free today.

Bing Free Wall Street Journal

Any ideas how many Bing searches were generated via these Wall Street Journal banner ads?

Or how many Wall Street Journal subscribers will convert to lifetime Bing users as a result of their exposure to Bing ads?