Pocket used to be known as Read It Later. It's that straightforward. You're browsing the Web on your computer or mobile device, you come across a story that you want to read later. With Pocket pervading your ecosystem (in addition to the App, you can and really must download the extension for your browser of choice; you can also tie Pocket to Twitter), you hit a button and the story saves on all of your devices that contain the Pocket app. For instance, if I hit the Pocket button at the top of my Safari browser right now, it will save this story on my iPhone, iPad and in the Pocket platform on my computer so I can read it later. Pocket quickly became a solid replacement for Twitter's "Favorite" feature. It used to be that when I didn't have the time to read an article in the moment, I would favorite it. I probably have 5,000 articles favorited right now in Twitter. I either forget or just don't want to deal with my favorite list in Twitter. It feels much more intuitive to go into Pocket at the end of the day or week and review what I saved. Follow @rocco_thestreet --Written by Rocco Pendola in Santa Monica, Calif.