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Comment Site-specifc Q&A, in CAPTCHA form, might work (Score 2, Interesting) 408

It seems to me that Q&A is the answer, if done properly. The key is to ask something that can only be answered if you're on the site. For example: "Next to the Slashdot logo at the top-left of the page, there is a five-word phrase. What is the second word in that phrase?"

You'd obviously need to change it up fairly often (and large sites would have problems still), but spammers would have a difficult time keeping track of answers for thousands of sites.

To make it even better, have it rotate through a few similar questions for your site, and have the questions be buried CAPTCHA-style in an image.

All told, it would seem to help. They'd have to resolve a very long CAPTCHA (117 characters in my example above) AND be on the site to get the answer. Seems like it would help.

Submission New tools for Google Earth, now supporting KML 2.2

mickmel writes: "Now that Google Earth 4.2 (with its support for KML 2.2) has been out for a few months, some creative new tools are arrving. Thanks to the new Flash support (Windows version only), you have things like an in-Earth message board, a nice implementation of FlashEarth inside of Google Earth, and videos of major airports (via YouTube) inside of description bubbles for those locations. They also included a hidden flight simulator, which you can combine with the new PhotoOverlay feature to create things like the illusion of a helicopter flight sim. I'm sure plenty more good hacks are on the horizon."

Brain off-line, please wait.