Welcome to Globals and welcome to Amsterdam!
Are you already here and do you like it so far?
For finding a place, you can look at
www.kamernet.nl. You can make an account there, buy replies (it's not very expensive) and then you can reply to all kind of people who offer rooms. They can invite you to look at the room, and maybe they'll choose you to life there. The response is quite high, so it's advisory to respond to lots of rooms you like! There lots of cool neighborhoods, I live in 'De Pijp', in the South. I adore this neighborhood! But there are lots of more cool places to stay!
You can take a look at this site too:
www.isn-amsterdam.nl/liveandwork/accomodation.html. It's for international students and they give advice about where to find a place, work, travel, etc.
What are your plans for doing in Amsterdam?