One of the biggest drawbacks of online surveys is that most of them can only be used when there is an internet connection. But according to Emiel Van Wegen there are tools that would allow web surveys to be conducted without any "internet access selection bias". Three new technologies were introduced in 2007: Google Gears, Adobe's Air and Microsoft's Silverlight.
"For example Adobe has shown off an Ebay desktop application built using Air that would allow users to do much of the legwork required in setting up auctions offline. The next time the user connects to the internet the listing would be posted to the website".
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