Mollom provides a one stop solution for all spam problems and can protect the following Drupal forms. It offers and intelligently combines:

• CAPTCHAs -- both image and audio CAPTCHAs
• text analysis
• user reputations

and can:

Uses the reCAPTCHA web service to improve the CAPTCHA system and protect email addresses.

What?

GlobalRedirect is a simple module which…

The ACL module, short for Access Control List, is an API for other modules to create lists of users and give them access to nodes. It has no UI of its own and will not do anything by itself; install this module only if some other module tells you to.

We're aware of the following modules using ACL (let us know if you know of others):

A CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block form submissions by spambots, which are automated scripts that post spam content everywhere they can. The CAPTCHA module provides this feature to virtually any user facing web form on a Drupal site.

A CAPTCHA is a challenge-response test most often placed within web forms to determine whether the user is human. The purpose of CAPTCHA is to block form submissions by spambots, which are automated scripts that post spam content everywhere they can.