I have found that challenge questions, not Captcha, are the best deterrent to spambots.They are unique, the administrator can change them, and spambots can't figure them out. Just realize that people can be dense when you write a question. I once had a challenge question of "What is the color of orange?" and got a lot of complaints. People couldn't figure out that the answer was "orange". :-P

On Sat, Jan 8, 2011 at 9:03 AM, Stephan Sokolow <gmane.ssokolow@spamgourmet.com> wrote:
I recommend a reCAPTCHA plugin since that'll also free you from the task
of updating the CAPTCHA-generating algorithm as the spammers improve
their OCR.

On 08/01/11 08:27 AM, Cilyan Olowen wrote:
> Finding a Captcha for phpbb3 should not be so problematic. This would
> be better than fighting it manually.
>
>> [...]
>
>
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Gaining the trust of online customers is vital for the success of any company
that requires sensitive data to be transmitted over the Web.   Learn how to
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and instills the confidence they need to proceed with transactions.
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