Latest Stats as at 7/3/2010.
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These figures cover the 13-day period 16/2/2010 to 28/2/2010.

Operating System Market Share
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For period 16th to 28th February 2010, these percentage figures 
are based on visits, with earlier figures in brackets:-

XP 48.9 (50.0, 49.4, 49.9, 50.4, 54.7, 54.8, 56.1, 56.3, 57.1)
Vista 22.9 (22.4, 24.1, 24.3, 24.6, 23.4, 24.8, 25.1, 25.8, 25.5)
Windows-7 9.3 (8.0, 7.3, 6.1, 5.3, 4.2, 3.4, 2.8, 1.9, 1.5, 1.2) 
Other Windows 4.0 (4.3, 4.0, 3.5, 3.9, 3.9, 3.2, 3.0, 3.2, 3.4)
Mac 10.0 (10.2, 10.1, 10.6, 10.1, 9.6, 9.5, 9.2, 9.2, 8.7, 8.7)
iPhone 2.1 (1.8, 2.0, 2.1, 2.3, 1.4, 1.4, 1,3, 1.1, 0.9)
Other Mobiles 1.5 (1.7, 1.6, 2.0, 1.9, 1.5, 1.5, 1.3, 1.2, 1.6)
Linux 1.2 (1.4, 1.5, 1.5, 1.6, 1.3, 1.3, 1.2, 1.4, 1.2, 1.2, 1.2) 

Windows XP has now dipped under the 50% mark.  
Windows 7 continues to rise at about half a percent per week.

The total sample size was 15537 visits by humans.

Browser Breakup
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Percentages of visits for the period 16th to 28th February 2010:-

IE 56.8 (57.2, 56.1, 57.0, 55.7, 60.0, 59.9, 60.0, 60.6, 60.6)
FF 24.1 (24.9, 25.3, 24.4, 25.1, 24.1, 24.5, 24.8, 24.6, 24.7)  
Safari 9.8 (9.2, 9.7, 10.2, 10.5, 8.6, 8.4, 8.1, 8.0, 7.7, 7.7)
Chrome 5.7 (5.1, 5.1, 4.6, 5.1, 3.9, 3.9, 4.0, 3.2, 3.5, 2.8)
Opera 1.5 (1.4, 1.5, 1.6, 1.4, 1.5, 1.6, 1.5, 1.9, 1.9, 1.7, 1.9)
All Others 2.1 (2.1, 2.3, 2.1, 2.2, 1.8, 1.7, 1.5, 1.7, 1.6, 1.5)
  
With new versions out, IE and Firefox are holding on.  But Safari 
(including the iPhone) and particularly Chrome are gaining ground.

The total sample size was 15206 visits by humans.

Search Engines Share
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Percentage breakup of visits coming via search engines 
for February 16th to 28th, 2010:-

Google 90.1 (89.6, 89.5, 88.1, 89.5, 88.0, 88.4, 87.7, 87.6, 87.5)
Yahoo 4.2 (4.5, 4.8, 5.9, 5.1, 4.6, 5.5, 5.8, 6.1, 6.1, 5.8, 5.3)
Microsoft 3.0 (3.1, 2.7, 3.0, 2.8, 4.0, 3.3, 3.9, 3.4, 3.5, 2.8)
All others 2.7 (2.8, 3.0, 2.9, 2.6, 3.3, 2.8, 2.6, 2.9, 2.8, 2.9)

This is the lowest result I have ever measured for Yahoo, 
a long way below the 16.1% found in an old log from September 2002.

Conversely, this is the first figure for Google over 90%.

The sample size here was 11853.

This week's issue of The Economist has a 14 page special report 
on "The Data Deluge".  Tucked away is this gem about spell
checking and search strings, both subjects very dear to my heart:

"Microsoft says it spent several million dollars over 20 years 
to develop a robust spell-checker for its word processing program. 
But Google got its raw material for free: its program is based on 
all the misspellings that users type into a search window 
and then "correct" by clicking on the right result.  
With almost three billion queries a day, those results 
soon mount up.  Other search engines in the 1990s had the chance 
to do the same, but did not pursue it.  Around 2000 Yahoo 
saw the potential, but nothing came of the idea.  
It was Google that recognised the gold dust in the detritus..."

And two newer Google services, translation and voice 
recognition, are using the same techniques.  There is no way 
Telstra's existing online directories or their voice 
recognition directory assistance service can ever prosper.  

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