I use Moveable Type which is written by a company called Six Apart.
CNN has done a very nice article on Ben and Mena -- the two people who started Six Apart:
The darlings of the blogosphere
Husband-and-wife team build a startup into a trailblazer.
Like so many other 20-somethings hoping to mine the Internet gold rush of the late 1990s, Mena Trott was thrown for a humbling loop by the dot-com bust, yet still craved stardom. Her unassuming husband, Ben, just wanted another computer programming gig in Silicon Valley's depressed job market.
The couple's odd chemistry cooked up Six Apart Ltd., a startup that has helped popularize the "blogging" craze, with millions of people worldwide maintaining online personal journals that dissect everything from politics to poultry.
The Trotts, both 27, have amplified the buzz about Web logs, or blogs, by making them easier to set up and write.
San Francisco-based Six Apart provides two widely used blogging tools -- a software publishing program, Movable Type, and a hosted service, TypePad, for people who don't want to do the technological grunt work themselves.
If you are looking to start a Blog, you cannot do wrong by using these products. Lots of third-party support. They keep the code open so you can write you own code or modify theirs. They have a free (no tech support) option (One Author with Three Blogs) Non-commercial licenses (with tech support) start at $70 for Five Authors and Unlimited Blogs. If you bought into an earlier version, they credit that purchase. Tech support is very very good... Hat tip to J Bowen at No WatermellonsBen and Mena Trott were born six days apart in 1977 -- hence their company name, Six Apart.
Couldn't agree with you more...I use their service too, and it's GREAT.