Hmm.. depend on the type of job you're going for. Sometimes if they are doing like seasonal hiring where they hire a whole bunch of people at once they wait to finish interveiwing people and getting everyones paperwork together before calling people back, and since it's a holiday week and all, they may just wait till this week to start making calls.

but if you don't hear anything this week, call them. sometimes you need to give them a call to get them moving.

good luck!