I love this app because it's super simple. You just create a poll, write down who you want to vote for, and when you're ready, click "Go!" It's literally that easy! You can add links to Facebook and Twitter so people can share the link with their friends. It has an intuitive interface, too - you can start off with a basic question, but once you get comfortable, you can create more complicated surveys that can get more specific about your customers' interests.
I've used DirectPoll many times and