What is Snapchat, how does it work and what is it used for? | Strictly pedagogical | Scoop.it
Snapchat has changed a lot in the past few years. Frequent updates means the app looks and works almost nothing like it originally did. 

Snap, the company behind Snapchat, is so aggressive with making changes to the app that it can be hard to keep up with how Snapchat really works, even if you're a regular user. To make things easier for you and newbies, Pocket-lint has compiled this straightforward guide. By the end of it, you'll know every facet of the app. And when the next update arrives, be sure to check back here, because we'll explain that, too.

Via John Evans