I’ve been using Tumblr a bit and I really dig it (for the record, the address for my Tumblr is heyitsnoah.tumblr.com). In the course of using and thinking about it, I’ve come to the conclusion that the service is really nothing more than an interface design innovation. That’s not meant as a knock on the service at all, it’s just to say that I don’t think any of the technology behind it is terribly interesting (it seems like a regular old CMS), however, what they’ve done is built a brilliant interface for a very specific use.
I expect we’ll see more and more of this in the near future. Blogs are great and all, but the software was built for a specific purpose and does that best. When you start to adapt it to a specific niche,