• Paper by Mikheev et al. about their state of the art English NER system.
• A nice overview and comparison of different feature selection algorithms by Jain et al. Here's another good overview by Dash et al.
• My own thesis about feature selection and parameter optimization for Dutch NER.
• One of the best probabilistic NER systems by Bikel et al.
• Antal's (and Sabine's) paper describing methods for building named entity seedlists from unlabeled data.

• CoNLL2002 shared task
• CoNLL2003 shared task

No demo yet, but here's a link to a collection of scripts that NE-tag Dutch texts.