Microsoft has called for a formal investigation into the plans for Google to buy DoubleClick on the basis of creating a monopoly. Which seams a bit hypocritical for a company that has already been found guilty of abusing its monopoly position to bully and intimidate the competition and its own resellers.
The same Microsoft had tried to purchase DoubleClick themselves in March. Could this be a case of sour grapes?
See: Microsoft in talks to buy DoubleClick.