Form Validation

Why must I type these words to submit this form?

This form uses CAPTCHA technology to validate the submission.

What is CAPTCHA?

CAPTCHA in this case refers to the practice of asking a user to enter a word or words displayed in a picture before allowing them to send an e-mail through a web form or post in a guestbook or forum.

CAPTCHA is an acronym for 'completely automated public Turing test to tell computers and humans apart.' If you are interested in learning more about CAPTCHA, we would recommend this Wikipedia article.

CAPTCHA has been implemented on certain pages of www.nmtcb.org to combat SPAM. By asking a user to read words found in an image, we are basically making sure the user is in fact a human as opposed to a computer program. The specific CAPTCHA that we use is called reCAPTCHA. We chose this CAPTCHA routine because we felt that we may as well perform a useful service if we must use CAPTCHA anyway. reCAPTCHA is a service that works to digitize books, newspapers and old time radio shows.

Some computer programs crawl the web trying to exploit websites that allow the posting of content by generating posts containing obscene material or advertisements. By displaying the required word as an image, we make it much harder for computer programs to generate SPAM because they have difficulty reading the word.

Unfortunately CAPTCHA is a necessary evil in the computing environment we live in. We apologize for the inconvenience, but we hope you agree that having to type a couple of extra words is preferable to having forums and guestbooks full of SPAM making them unreadable.

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