Google added an option to their photo gallery app Picasa Web Albums offering you to lock albums. The option is named “Sign-in required to view,” meaning only people you share the album with are meant to access it, after signing in with their Google account.

Showing people your pictures online has become routine – there’s no shortage of sites at which users can display one subtitled photo at a time.  Shutterfly is taking a slightly different approach, however, with a new feature that’s more like a social scrapbook.