ReCAPTCHA is an interesting innovation on traditional CAPTCHA technology:
http://recaptcha.net/ "reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly." On Nov 29, 2007, at 10:18 AM, Chris Maissan wrote: > I am in the process of designing a support forum for a software > product. The > goal is to make it as easy as possible to ask a question. Ideally > I'd like > to do away with the need to login all together, but it also needs > to be Spam > resistant. > > > > I've looked a little into the CAPTCHA (Completely Automated Public > Turing > Test to Tell Computers and Humans Apart) method, better known as the > "distorted text method", but questions have been raised about both its > accessibility and effectiveness. > > > > There is the option of sending an activation email. However, this adds > several steps for the user and is not without its own issues (Spam > filters > etc.) > > > > Does anyone have any thoughts on the best method to confirm a user > is human? > Maybe a third option I haven't thought of? > > > > Cheers, > > Chris > > > > Some links on CAPTCHA > > http://en.wikipedia.org/wiki/Captcha > > http://www.w3.org/TR/turingtest/ > > > > > > > > > > ________________________________________________________________ > *Come to IxDA Interaction08 | Savannah* > February 8-10, 2008 in Savannah, GA, USA > Register today: http://interaction08.ixda.org/ > > ________________________________________________________________ > Welcome to the Interaction Design Association (IxDA)! > To post to this list ....... [EMAIL PROTECTED] > Unsubscribe ................ http://www.ixda.org/unsubscribe > List Guidelines ............ http://www.ixda.org/guidelines > List Help .................. http://www.ixda.org/help ________________________________________________________________ *Come to IxDA Interaction08 | Savannah* February 8-10, 2008 in Savannah, GA, USA Register today: http://interaction08.ixda.org/ ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
