In the world of search engines, it has been the case that Google Inc. (NASDAQ: GOOGL) has dominated for years now. Still, Google total share of search has contracted from a peak, with Microsoft Corp. (NASDAQ: MSFT) and Yahoo! Inc. (NASDAQ: YHOO) having a combined 31% or so of U.S. desktop and work search results.

The latest data issued from comScore showed its monthly comScore qSearch results for the U.S. desktop search marketplace in July. Google Sites led the explicit core search market with a reading of 64% of search queries conducted in the month of July.

Microsoft was next in line with 20.4%, a gain of 0.1 percentage points. Yahoo Sites was third with 12.7%, followed by the Ask Network with 1.8% share (up 0.1 percentage points) and AOL, with 1.2% share.

comScore noted that the rates of Explicit Core Search exclude contextually driven searches that do not reflect specific user intent to interact with the search results. Some 17.7 billion explicit core searches were conducted in July, with Google Sites ranking first with 11.3 billion (up 1%). comScore then showed that Microsoft Sites ranked second with 3.6 billion searches (up 1%), followed by Yahoo Sites with 2.2 billion (up 1%). Then there was the Ask Network with 313 million (up 4%) and AOL with 206 million (up 2%).

Also included with this report is a standing of the two tables from comScore to show the rankings on a case by case basis. Again, it seems as though consumers of search may have decided to keep their search results static.

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Is there a growing case that search has become another commodity?