Tumblr
Tumblr is something that allows you to create Tumblelogs. What?
What’s a tumblelog?
To make a simple analogy: If blogs are journals, tumblelogs are scrapbooks.
You can also look at tumblelogs as slightly more structured blogs that make it easier, faster, and more fun to post and share stuff you find or create.
Is Tumblr better/worse than Blogger, TypePad, FaceBook, etc.?
It’s totally different. That’s why we built it, and why we love it so much.
Blogs are great, but they can be a lot of work. And they’re really built to handle longer-form text posts. Tumblelogs, on the other hand, let you easily and quickly post and share anything you find or create.
The thing is completely free, and it’s so simple and easy to use. It’s for those small personal blogs which you would usually choose Blogger for, Tumblr makes it more fun, and easier to share.
You can find more information on Wikipedia.
(via NOGG3R5’s shared items in Google Reader)