BrusselsExpats.com is the largest source of resources and goodies for Expats in Brussels.

Just register and you have access to thousands of interesting addresses in the larger Brussels area.

Ranging from embassies to expat clubs and associations where you can meet your fellow citizens.  Or a list of all international schools, specialty shops for expats, international bookstores etc...

Tons of useful addresses, all with names of contact persons, email addresses, websites and a Google Maps locator.

All expat info is logically categorized and accessible through a powerful search engine.