Here are some presentations and texts used in some of the courses I taught recently.
Corpus linguistics
[old lecture notes, in Dutch]
History of linguistics
[spring 2005: powerpoint presentations]
Optimality theory and morphology
[powerpoint, winter 2004]
Historical syntax
[powerpoint presentations for the LOT-Winterschool 2005]
Specialisatiecollege taalkunde 2008-2009