Vox.com is a free blog provider with supercool designs, helpful community, and great features.
Few highlights:
1. Tagging, Commenting
2. Unlimited uploading of your Photos, Music, Videos.
3. Flickr, YouTube etc. integration (meaning, you can pull stuff from there and have it displayed in your blog posts)
3. Template customization
4. 'Collections' where you can group any blog posts, photos, mp3s, videos of your choice so they belong to a particular topic.
You don't have to worry about hosting costs, uptime, bandwith and other such maintenance headaches. Of course, you also can't insert your own Google ads or do other customizations that you could, on say your own WordPress blog.
My Vox blog is at
http://sridhar.vox.com. That is the default design and I haven't touched the template.
Vox registration is currently invite-only. Let me know if any of you is interested and I shall see if I can arrange some.
Again, a disclaimer: I am just a voxer, not affiliated with that service.