I co-founded the company GreenLight Solutions and am currently working there as resident programmer and developer of the Avenue CMS. I've folded my former free-lance activities as web-manager and programmer into the company. Sadly, I do little teaching nowadays.
For the Institute of Logic, Language and Computation (ILLC), I manage their own website, as well as the website of the MSc in Logic and conferences such as ICGI-2002.
Together with my brother I manage the site for the dutch writer Hans Vervoort, the site Gissen en Missen on illusions, the weblog Terra Maja, and a fansite for the reality show Expeditie Robinson.
For the artist Lilian Cooper I occasionally create Flash presentations of her designs, such as her poem French Windows.
Working for the PCC UvA bv, I'm the programmer for the Emile Grammar Parser, a continuation of one of my PhD research projects.
I'm also the resident programmer for the company I co-founded, GreenLight Solutions.
For the last few years I've taught the exercise classes for Pieter Adriaans' course in Automatic Learning Systems.
In the third trimester of 2002, I also taught a course in Axiomatic Set Theory
During my AIO tenure I also taught the exercise class for several introductory courses in logic, for which I still can offer the exercise book.