> Use Super-A. You can tell Unity exactly what you want to search. And in future you’ll be able to do that from the home lens, too, more easily than the current Lens Bar at the bottom of the Dash.
From http://www.markshuttleworth.com/archives/1182
It sounds like they're working to expand the search functionality with users' best interests in mind, not adding advertisements as everyone seems to think.
> it is being done to track my interests for monetary gain in the form of referral links
They're just search results, not ads. Read the blog post from Shuttleworth.