There are a lot of legitimate survey sites out there, here is one I signed up with a few weeks ago and having been getting surveys for. I haven't really had a chance to do any of the surveys I've received but did get one this morning that I did. It said it would take 10 minutes but only seemed to take about 5-6 and I received $1 for it. So $1 for 5 minutes of my time isn't bad! The survey was based on pictures from ads so it was not at all monotonous.
For this survey site you can choose from different types of gift cards to get paid with, for example Amazon gift cards, and each survey pays anywhere from $1 - $5 each. You can check it out HERE .