Phormer is a PhotoGallery Manager in PHP. It's my first project on SourceForge and I learnt lots of ideas in developement, there. Like PsycHo, Phormer is also under GPL.
Phormer, has lots of useful features, listed at its homepage. examples are: Commenting, Mass Upload (AJAX), Categorizing, Privacy, SlideShow, part-of-shot thumbnail generator, Ranking, Themes and modes, RSS, Statistics, EXIF, Backup, Update and much more...
PsycHo [Since December 2005] :: http://psyc.horm.org
PsycHo is a template generator for weblogs. It customizes the template colors, columns, links, backgrounds & ... and finally gives the (W3C valid) HTML to you. PsycHo supports Blogger, PersianBlog and BlogFa and is also available in English and Persian.
PsycHo is not updated since Jan 2006. I am wishing to find enough free time (or a companion!) to rock it again: Support Blogger 2, Support WordPress, MovableType, BlogSky, Read posts from RSS of desired weblog AJAXly while loading and other features to add! Feel free to contact me, if you were interested in continuing PsycHo.
Totem [12 March 2006] :: http://etc.aideen.org/totem/index.phps
Totem, Unlike Phormer and PsycHo, is not a big project with thousands lines of code! It is only 54 line and 2.3KB!
Totem is a public, login-less and almost simplest Blogging engine! I created that because I am a great fan of bloggin and I wanted to have somewhere to leave my quick notes, as fast as possible. Have a test of posting to it at http://etc.aideen.org/totem/
CAST [On March 2006] :: http://etc.aideen.org/cast
CAST, Concurrent ACM Status Trimmer, is a tool for me and my team-mates in ACM-ICPC to manage our codes and check our progress, in ZJU Online Judge.
A derivation of it, named COST is customized for IOI-2007's training camp at May 2007.
ACM [On March 2006] :: http://etc.aideen.org/acm/acm.zip
ACM, Atomic Comment Manager, is an abstract translation of Phormer's commenting module into Persian for particular use of weblog commenting.