MARLBOROUGH, 9/11/2009 - Chitika, a Massachusetts-based online advertising network, today released a study of mobile vs. non-mobile Internet usage. Based on a sample of 92 million impressions, the Chitika study shows that mobile users are approximately half as likely to click on an advertisement as non-mobile users.

The power of bundled software can be an amazing thing – all three major operating systems have a bundled Internet browser, each of which has 73% of their OS's Internet usage (based on a sample of 163 million US/Canada impressions across the Chitika network in early August). But Bing, the decision engine Microsoft bundles with Internet Explorer, only gets 10.3% of IE users' searches.

With the upswing in the number of Linux boxes (thank you netbooks and Dell) and as much interest we have in the search engine market, we at Chitika thought we’d take a look at the search habits of our open-source friends. We compared the OS and search engine data for 163,211,927 searches – a sample of the Chitika network’s search data from July 30th through August 16th – and the results were quite interesting. Check them out:

We at Chitika are quite fond of search engines: since all of our ads serve only to search traffic, they're our bread and butter in the online world. So with Microsoft's new Bing decision engine making so much noise, we thought we'd take a closer look at the clickthrough rates of visitors from the three major search players: Yahoo!, Google, and Bing.