Americans conducted 11.8 billion core searches in July (up 2% vs. June) as Google Sites slightly extended its lead in core search market share - by 0.4 percentage points - according to the monthly comScore qSearch analysis of the US search marketplace.

US Core Search Rankings

Google Sites led the US core search market in July with 61.9% of the searches conducted, up from 61.5% in June:

Rounding out the top 5 were Yahoo Sites (20.5%), Microsoft Sites (8.9%), Ask Network (4.5%), and AOL LLC (4.2%).

Google Sites handled nearly 7.3 billion core searches (up 2%), followed by Yahoo Sites with 2.4 billion and Microsoft Sites with 1 billion:

Expanded Search Rankings

In the comScore July 2008 analysis of the top properties where search activity is observed, Google Sites led with 9.9 billion searches, a 4% increase versus June.

Yahoo Sites ranked second with 2.5 billion searches, followed by Microsoft Sites with 1.1 billion and AOL LLC with 814 million.