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 Posted by Sign Generator on 05/11/06 16:37 
http://www.google.ca/custom?q=captcha 
 
Yup, captcha for sure, it uses PHP GD or ASP GDI to dynamically create 
images from text/words to be displayed for human reading (hard for a 
bot to read images, need specialized OCR bots for that, but making 
weird fonts and other abstracts to the image will make the image only 
human readable. Heres a sample: http://www.sirseek.com/spider/crawl.asp 
 
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Gigahertz Inc. 
http://www.GigahertzInc.com
 
  
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