Tumblelogs are like blogs with less fuss. Tumblr is your friendly and free tool for creating tumblelogs.
which got me thinking about what you really need a blog service to do and what makes it easy to post?
Despite my best intention to use my blog to post insightful and well-thought-out original writing, most of the time I’m posting a quick comment, or a link to a cool site or video, or a picture, or quote. While much has been made of the “blogosphere as a conversational medium, I receive very few comments since I’ve required TypeKey authentication for comments (to defeat comment spam), and trackback is hopelessly broken.
So tumblr’s interface, which makes it supremely easy to post a small text snippet, a photo, quote, link, conversation, or video link, makes a lot of sense to me. If anybody asks me now where they should turn to start blogging, I’ll point them to tumblr first. This makes a whole lot more sense to me than Twitter, which I’m still having a hard time getting.