CAPTCHA Kinda Spam Prevention in ASP.NET

Spammers really bug me.

I've been working on this on-going sports related portal project (that probably will NEVER go live :)

I love of hobby community sites degrade quickly because they lack the moderation resources to keep the user submitted content quality high and I've been thinking about this problem.

I thought I would share some interesting links that I found on the subject.

• The Official Captcha Site
• Microsoft Research HIP (Human Interactions Programming) 
• MSR Asirra (Animal Species Image Recognition for Restricting Access)
• Subkismit on CodePlex.com
• ASP.NET AJAX NoBot
• ASP.NET CAPTCHA Server Control on CodingHorror.com
• ASP.NET CAPTCHA Server Control on CodeProject.com

Comments

• Anonymous
  November 08, 2007
  I've started using reCAPTCHA on my web sites.  It's a free project from Carnegie Mellon University and is easy to integrate into ASP.NET web pages.  http://www.recaptcha.org