yohaas, a reader, emailed me this crazy UI feature Google seems to be testing out. Basically, he did a search on Outlook object Model and on page two it showed "Alternate Searches" smack in the middle of the SERPs.
Annoying, no? We had something a bit similar to this with April 06, 2005 entry.
Update: GoogleGuy confirmed this is not spyware and is in fact a UI experiment.