Ever since Carlos turned me on to the Twitter, the idea of thesideblog/microblog has really taken off for me. It's a great way to share what's going on in your life with others without having to stop and jump through all the hoops to do a traditional blog post.
And now there's the tumblelog. Tumblr (and other services like it) give you just enough functionality to do a blog-ish type thing either on your computer or on the go. It's quite spartan - no sidebar links, no comments - and that's the beauty of it. Here's what wikipedia has to say about it:
A tumblelog (or tlog) is a variation of a blog that favors short-form, mixed-media posts over the longer editorial posts frequently associated with blogging. Common post formats found on tumblelogs include links, photos, quotes, dialogues, and video. Unlike blogs, tumblelogs are frequently used to share the author's creations, discoveries, or experiences while providing little or no commentary.
I can't quite explain it, but getting online and looking at this big white box makes me feel like I have to fill it. If the box is smaller (or not there at all!), it is somehow freeing. I probably get online with the iPhone more now, and smaller seems to be the way to go.
It's just a "little" experiment. Check out my tumblelog to see how it's coming along!