I’ve heard quite a few people remark that Pinterest is competitive with Tumblr. I’m not sure I agree with that. Sure, all of these big, growing services are competing for users’ time and attention, or competing against television, Facebook, and/or Twitter. At the same time, I do believe Pinterest and Tumblr are “similar” in some regards (designed well, easy to use, addictive, etc.) but are not on the collision course that some believe. The main reason why Pinterest and Tumblr are not competitive is that each network organizes information in different ways and, more importantly, presents them in different ways. Tumblr is the great aggregator, a well-designed wedge between Facebook and Twitter where users can “tumbl” their favorite text, quotes, pictures, videos, songs, and whatever else, including “reblogging” other users’ Tumblrs. On Pinterest, users “pin” images from around the web onto their pinboards, where they can also “repin” information from other boards; it’s also likely to think that the act of “pinning” could be extended to more types of content, such as Tumblr offers. And, this is why I believe many people see these two services as potentially competitive. To me, there is a great distinction, however — Pinterest organizes data that clustered around users’ pinboards (or categories) and people who “pin” any piece of content, most of which seems to be material and object-oriented, whereas Tumblr content is organized around those who post and reblog, and could be any type of media. My thinking is that Pinterest strongly taps into a person’s desire to capture and save images of things they admire and/or want (wherein their reveal some intent) and that Tumblr is a beautiful place to casually aggregate and share all types of content with others and could actually begin to slowly steal away attention from Facebook. So, in sum, I don’t see Pinterest and Tumblr as competitive with each other, and in fact, rather see them as long-term threats to Facebook and Google by providing users with discovery over search.