Things with user interface
Apache access log browser and analyzer. (Linux)
A console RSS reader. (Linux)
Make your enemy ride your lightning! (Linux)
A fairly secure POP3 server written in Go or Perl. (Linux)
An email/mailing list to RDF/RSS gateway. (Linux)
Code fragments or small shell scripts that may be useful are collected under the journal tag Random Code.
This one's hilarious. Too bad app stores didn't exist then. I would've been rich!
The donations page if you find something useful.