free CAPTCHA script to prevent automated bots and spam submissions. More captcha scripts
youtube-dl is a small command-line program for downloading videos from YouTube.com
Openmaillist is written to be a hybrid of a mailing list manager and a message board system. You can post via email and subscribe to lists, as well as log in and do whatever you can with a forum.
LnBlog is a simple Weblog with some basic site management features that is
designed for flexibility. It has few requirements and works well in shared
Web hosting situations. All data is stored in text files and the file
access module can be easily configured to work when PHP's safe mode is
enabled. Some of LnBlog's features include multiple authors, multiple
Weblogs, reader comments, trackbacks, auto-generated RSS feeds, permanent
articles, and file uploads. It also has a flexible theme and template
system, a powerful event-driven plugin system, and support for
internationalization.