Shelfster is an online application that lets you quickly save favorite pieces of information from the environments that you interact with: Internet, offline documents and real-world information. This information is saved in the form of items (text or image) to which, to be easily found, you add tags, or annotations. The application has an advanced system of filters which ensure that you will easily find what you want. Being stored in an online account, you won\'t have any problems accessing your information from anywhere you find an Internet connection. Shelfster offers you a desktop tool with which you can easily create text items (clipping) and image items (cropping). Besides helping you organize all your favorite information, Shelfster gives you the possibility to share it instantly with friends, Shelfster\'s community members or members of other social networks. And there\'s more! Because there is so much quality information, we thought of a way to intuitively discover and learn new things from community members. And you can do that by following certain users (follow), or only certain topics of interest or specific topics from your favorite members.