Instagram isn't a social networking site as such, it's something you use with a smartphone, and its more like a photoblogging site.
If you see something you like the look of, you can photograph it with your phone, upload it, then use special affects which are all meant to make it look like it was taken with a 1960's camera or polaroid snap.
It's one of those things you either like, or think "and the point is?"![]()