MetaDirectory
- Blogcomments
Free self-hosted commenting system with an ASP base. Layout can be customized using CSS.
- BlogKomm
Free commenting script displays comments below posts rather than in pop-ups.
- Cbox
Scalable tagging and commenting system that lets visitors leave you messages and talk to each other. Premium version has live chat capability.
- co.mments
Uses a bookmarking system to track comments so users can follow their conversations across blogs.
- DocumentRoot Weblog Tools
Free weblog commenter and counter tool.
- DotComments
Server-side, requires PHP. Has its own support email list.
- HaloScan
Free, easy to install weblog commenting system allowing webmasters to receive feedback on their website.
- LastHalo
Add-On for Haloscan users to display the latest comments.
- Pollxn
A lightweight discussion engine for Blosxom and other weblog/blogging applications. It lets people post comments about your weblog stories right on your site.
- PurpleBunny
Add your comments to the web page you are currently reading for others who come after you, and read comments from people who came before you.
- Reblogger
A comment system for weblogs that can be used as a remote commenting system or can be installed on any server with cgi capability and perl.
- Remote DotComments
Remotely hosted commenting script.
- Tag-Board
Free message board for weblog webmasters wanting to communicate with users. Displays inline comments.
- Tag-World
A free tagboard system. Displays inline comments.
- Tara Star's Script
Requires PHP. Notifies the weblog's owner when new comments are posted.
- YACCS
Free remotely-hosted commenting. Available in multiple languages and does not require JavaScript. Users can edit and delete posts, and ban IP addresses.
- ZonkBoard
A free blabber board made specifically with weblogs in mind.