Bloglet is a very simple weblogging tool that I (Moss Collum) wrote while putting off writing a paper during my senior year of college (that'd be 2000), and then rewrote while putting off looking for a job after I graduated (that'd be... um... later in 2000). The first version has a certain terse elegance--it uses only a tiny Perl script and an unbelievably simple template file--but it also has no notion of old posts moving into an archive, so that when a bloglet gets too long it has a nasty tendency to start eating its own tail. The second version is moderately more robust, though it still does lose a page occasionally. If you'd like to try it out, you can download version 2.1. It's a command-line based tool: it prompts you to enter a line of text, and then posts it. This is 'cause I originally kept it in my .login file. Since graduating from college and moving to my own server, I've developed an increasingly massive apparatus to provide a web interface, and even an XML-RPC interface, to the original program.
Yes, I know that there's something else called Bloglet. There wasn't when I wrote mine, but also it's not like I think they stole it from me or anything.
I don't think bloglet in itself is all that special (though, like I said, certain terse elegance, and also I have done some cool stuff in some of the associated scripts), but it did have the incidental effect of getting a lot of kids from St. John's to start blogging, and believe me, this is a very good thing. One of them, Kerne, also wrote his own weblogging tool, though he's since switched to Movable Type. Read his blog anyway; it kicks ass. As the number of bloggers in our immediate social group grew, we ended up building a very nice tool to track blog updates--it's called BLT (for bloglet tracker, 'cause Kerne's all into terse Unixy command names, yo), and I think it manages to be useful in ways that neither an RSS aggregator nor something like Weblogs.com would be. It tracks both entries and comments, and is usually up-to-the-minute accurate. I sometimes consider doing a longer article about it, 'cause I think the same approach could be useful to other small communities of webloggers.