Information about Maastricht:
Tourist Information Office
VVVMaastricht
Information about Maastricht and surroundings
Maastrichtweb

Worth checking
MaastrichtCoolbegin

Some interesting sites to pay a visit in Maastricht:
Bonnefanten Museum
Centre Ceramique
Natuurhistorisch Museum Maastricht

Impression of Maastricht and surroundings:
Photo's