Google had a 36.4 percent share of the search market in March - up a half percentage point year over year - comScore reported Wednesday, writes MediaPost. Yahoo, right behind with 30.6 percent, did not make up ground against the leader. MSN Search was a distant third with 16.5 percent, up from 15.7 percent last March. AOL's share decreased 4.5 points, from 13.4 percent to 8.9 percent. Ask Jeeves' share of increased 3.7 points to 5.5 percent.