If Facebook is the social network for online identification and authentication, and Twitter is for communication, Tumblr fulfils a different role: self-expression. Users can upload seven types of media -- text, photos, quotes, links, dialogue, audio, video -- from one button on their dashboard and push it to their public-facing tumblelog. These blogs can be designed however a user wants, or dressed in a "theme" (the most popular theme, Redux, has three million users). Tumblr is extremely easy to use as a free-form blogging platform, but has also developed into its own social network.
I've been hearing "Tumblr" everywhere, so I thought I'd check it out.
After a few days of use, I love it.
Tumblr is very easy to use. If you're still not blogging, take it for a spin.
The above Wired article is fascinating.