Rotterdam has it's own information driven website for expatriates or anyone moving to Rotterdam. In english it has information on where to live, what to bring, how to get around, formal procedures, driving, shopping, schooling etc.
http://www.yourrotterdam.com
Also see http://www.intouchnl.com, a mum & tots group that meet regularly. they also have events for all the family (dads included) golf, drinks, dinners, parties, movies, book club etc.
