Blogs are a great way to promote yourself and your business.

PHP-Nuke - automated news site system offering a variety of tools.
http://www.phpnuke.org/

Vixen Blogs Free Wordpress Blogs (Adult Content Allowed)
http://www.vixenblogs.com/

Blogger - offers free weblog publishing and hosting.
http://www.phpnuke.org/
TypePad - hosted service providing powerful tools for creating full-featured weblogs built on Movable Type’s publishing platform.
http://www.typepad.com/

Xanga - provider of weblog and webpage publishing tools for online diaries and journals.
http://www.xanga.com/

Blog-City.com - offers free and premium weblog hosting.
http://www.blog-city.com

Weblogger.com - content management hosting tools and services.
http://www.weblogger.com

eBloggy - free blog hosting with tools.
http://www.ebloggy.com/

MindSay - blog hosting with the ability to update via instant messenger.
http://www.mindsay.com/

Weblogs.us - offers free Movable Type and Wordpress-based blog publishing, hosting, and support.
http://weblogs.us/

eBlogger.com - provides blog web sites to quickly post thoughts and interact with people.
http://www.eblogger.com

BlogoMonster.com - free full-featured blog hosting service.
http://www.blogomonster.com

Wordpress-semantic personal publishing platform with a focus on aesthetics, web standards, and usability.
http://www.wordpress.org (love it live for it lol)

http://www.movabletype.org
offering personal publishing software for the weblog generation.

LiveJournal.com - offering a place to create and keep your own online journal. Also featuring communities.
http://www.livejournal.com

Diaryland-free service that lets people write and update journals and diaries through their browser.
http://www.diaryland.com/