I’ve just tried a quiz using socrative.com in a group of 22 kids. In teams the students played against other team in class. In the end the winner even got a prize. That was an interesting learning experience using new media and a fun lesson at the same time. I mainly used multiple choice questions/answers, simply because it’s easier to handle in class. of course you need a reasonable WIFI and a bunch of netbooks for your students. It also perfectly works on your portable device but our kids aren’t allowed to use them in school.
I strongly recommend to give it a go. It’s not only fun creating a quiz but also doing the quiz and having your students engaged in learning a foreign language!