<shameless plug>

thraxil is one that i wrote. it's intended for a collaborative weblog (eg, this site) and includes a bunch of features that may be overkill for what you're doing:

• threaded comments
• bookmarks
• images
• user accounts with individual diary areas
• HTML::Template used for everything so it's easy to customize and supports multiple themes
• markov chain random text generation
• and of course it's released under the GPL

the disadvantages at this point are that it's rather more complex than other systems, it uses a postgresql backend (should be straightforward to port to other RDBMS's, i just haven't had any motivation to do so yet) and there are some performance issues. i'm working on porting it to mod_perl and preliminary testing is showing a vast performance improvement there.

</shameless plug>

rolling your own isn't a bad option though. especially if your needs are different from what the standard options provide. writing a simple blog script is fun and educational.

anders pearson