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"For years, email spammers have been looking for ways to encourage people to click on their links.  And for years, Google has been a target.  Why? Well, when someone sees a link that has google.com in it, people trust it.  So over the years, Google URLs that redirect to other sites have been a target by spammers.The most recent Google property targeted by such attacks is Google Reader.A Google Reader Help thread has reports of such cases, with a Googler confirming it is an issue.  Several people are reporting receiving email spam with URLs that look some thing like:http://www.google.com/reader/item/tag:google.com,2005:reader/item/3c49b76cf8cb8ba0Clicking on that URL would have redirected you to a non-Google site.Googler, Roger said:It looks like some spammers have taken a liking to Google Reader - we're currently trying to find the best way to limit this kind of automated abuse without impacting the experience of real users such as yourselves. Hopefully we'll have a solution that works for everyone soon. Thanks for your patience and understanding in the meantime-So be on the look out.Forum discussion at Google Reader Help."^^<http://www.w3.org/2001/XMLSchema#string>
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