Get Quick Search Results With Google.com/ie
Google is displaying Adsense ads inside the search results page to monetize the search engine because of the several search queries that they get everyday. Google needs to take care for search engine developers, bandwidth cost, servers etc along with lots of other outlays and hence search result pages showing ads cannot really be termed as unfair.
Such ads are really annoying for a user who uses Google search engine regularly. To make your Google search more efficiently, you can remove all the ads from search engine page. You can visit Google.com/ie to get your search results in the same page, without having to put up with the advertisements.