Path

Does the world really need another social network? Well, the guys behind Path (Free) would probably answer "yes, and no." Touted as "The Personal Network," Path is a new photo sharing service tailored to posting real-time images from your phone's camera — currently limited to iPhone — and sharing them with up to 50 of your closest, most trusted confidants. It lets you see who's looked at your photo, and uses tags for people, places and things to help you organize memories from your life. So it really is another social network — except when it isn't.