ReadWriteWeb

Blackberry users in the U.S. barely click on mobile ads, while those who own a Symbian-powered phone click on more ads than anybody else. According to the latest data from mobile advertising optimization platform Smaato, the most interesting development with regards to mobile ads in the U.S. over the last month is the fact that click-through rates for users of Apple's iOS devices have increased dramatically.

According to Smaato, a mobile ad optimization and advertising company, Internet users on Symbian phones, feature phones and Windows Mobile phones are far more likely to click on mobile ads than users on iPhones, Android phones, Palm devices and Blackberries. To get this data, Smaato, analyzed over 4 billion ad requests on 36 mobile ad networks. Worldwide, the click-through rate (CTR) for Android users declined markedly over the last two month. While Android still had an above-average CTR in January (just behind Symbian), Android ranked at the bottom of Smaato's ranking for March.

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Since the launch of the contextual link advertising product on ReadWriteWeb, we at Hakia have been anxious to see the results and evaluate the success of our contextual advertising product, Contexa. The Contexa system matches the semantic context of a blog post with a sponsor's criteria on the fly to deliver relevant ads to the reader. Participating ReadWriteWeb sponsors have provided the contextual engine with up to three "trigger phrases" that define their business. As a reader of the blog, you may have seen the product's implementation at the bottom of certain blog entries, as shown below. You can see another example here.