a subset of social media; a website or web application that allows users to digitally catalog things they care about - music, books, movies, art, food, crafts, DIY, etc. while at the same time sharing their content in an online community
Ex: Pinterest, GoodReads, Steroemood, FoodGawker, Craftgawker, WeHeartit
Emily: I can't get off of Pinterest! This social cataloging site is so cool, look at all of my pinboards.
Ashley: Whatever, I'm on goodreads adding books to my digital bookshelf. I'll stick you with a pin if you bother me again.