Looking more for things like XML feeds or database dumps.
There's a few free resources that have dutch info, if you restrict your searching: Searchhippo xml feed (with search against .nl only), DMOZ directory dumps (netherlands categories only), and google API (with search against .nl/or/dutch language only)
QualiGO does some Dutch PPC but I'm not sure about trusted feed. MSN does it's own thing. Overture also recently opened a Dutch office. I'm still not sure if you want to fed or be fed? In case of the latter, try QualiGO.