Looking for a CAPTCHA system to stop comment spamming on your blog or other web application?
It has been calculated that about 150,000 hours of human labor is spent filling out CAPTCHA requests on web sites wishing to reduce spam. Yet another waste of time and energy expended on dealing with idiots the persist in proliferating unwanted advertising material in this world.
The reCAPTCHA project doesn’t have the answer to eliminating website spammers but it does have a solution for putting the time spent filling out CAPTCHA questions into productive use. Every time the reCAPTCHA system dishes out CAPTCHA words it is in fact using this people-power to convert scanned copies of archived books into digital format. Click here to read more about it.
If you didn’t know about the huge online media archive over at www.archive.org you may like to check that out also. There you will find a vast library of free ebooks that are digitised copies of old books that are no longer under copyright protection. There are also many other resources at this site, including archives of millions of web sites.
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