Scoreboard - 8:04 am on May 30, 2005 (gmt 0)

Let's say you search for microsoft.com on Google. You'll then be shown the usual:

Show Google's cache of www.microsoft.com
Find web pages that are similar to www.microsoft.com
Find web pages that link to www.microsoft.com
Find web pages from the site www.microsoft.com
Find web pages that contain the term "www.microsoft.com"

Now, when you I click on the "link to", rather than seeing "link:" info, I see randomly assigned strings before eg. "Results 1 - 10 of about 129,000 linking to VRA9OSkpgNsJ:www.microsoft.com/"

What is this "VRA9OSkpgNsJ"?