Scores.org brings us Is Google a Monopoly? designed by Jess Bachman.

Google has a dominate market share of a very important gateway; internet search.  Can they stay impartial when they have their own products to pitch?  Whether or not they are a monopoly is up to the government and the best way to predict the future is to look to the past.  Examining these four historical monopolies, and their outcomes, should give us a better sense of Google’s fate.