Adds new fields and requites new users to register additional fields (such as first name and last name) or any new field you wish to add.
Simple IP Ban is a lightweight ip / user agent ban plugin.
No spam in comments. No captcha.
WP Anti Spam can anti automated spambots or anti spams by"comment","ip","name","email","url".
Spam proof contact form that emails you the message and saves it in database.
This plugin utilizes Google reCAPTCHA to help your blog stay clear of spams. You can use this plugin with Akismet and Contact Form 7.
Slider CAPTCHA is a WordPress plugin that will allow you to replace or add a CAPTCHA field to any WordPress form.
webcrawlers. Automatically turns plaintext e-mails into (enkoded)
Dead simple and super lightweight anti-spambot WordPress plugin. No captcha, tricky questions or any other user interaction required at all.
Secure your website email addresses from being scraped and harvested with the strongest email obfuscator available.
A simple and efficient anti-spam plugin
Upon activation, SpamLord eliminates the potential for automated spam comments, as well as trackback spam.
An easy to use wordpress Captcha plugin to prevent spam on your site. You can use Image Captcha to protect comments and the admin panel.
Plugin to reject spam. Port from same author from http://www.phpbbantispam.com
Actually visits the URL from commenter to spider for spamwords.
A customisable human detection plugin, that isn't annoying. Seriously.
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