Chirp is a new social network that lets you share all kinds of information through your iPhone's microphone, making it so sending information is as easy as talking into your device. To take full advantage of the app, it's best to have friends who also use it, but this can be pretty complicated because there are very few Chirp users at the moment. However, if you do have friends on Chirp, you can send photos, documents, and audio files to them very easily. You just need an Internet connection. Chirp is an expanding social network that has the potential to become a great way to share and receive links and sound files from friends.