from PCWorld.ca:

Google widened its lead over the competition by winning 58.5 percent of all U.S. searches last month, up 1.5 percentage points over September. Yahoo took second place with 22.9 percent of the search market, down from 23.7 percent, while third ranked Microsoft dropped to 9.7 percent from 10.3 percent.

Ask Network remained steady at fourth place with 4.7 percent of the U.S. search market in October, while Time Warner Network dropped a tad to 4.2 percent from 4.3 percent a month earlier, ComScore reported.

Google captured 6.1 billion of the 10.5 billion Internet searches Americans conducted in October, ComScore said, far more than second place Yahoo’s 2.4 billion.

This is good for google but not good for yahoo or microsoft.