For some reason or another, Instagram has yet to release a web-based interface for its billion-dollar social network. No worries, though—a bunch of companies have already picked up the slack. One of our favorites is Statigram. There's now a new one called Pinstagram that, as you can guess, takes the format everyone's recent favorite photo-sharing site. You know how we feel about Pinterest, but we can't front—this is a great way to view Instagram.