As the most popular blogging software, WordPress has matured to become a bona fide solution for businesses that need a blog or even a web site with updatable content. It’s free, capable of search engine optimization and easy to update.
Other blogging software options:
Blogger is best suited to those wanting a basic blogging site vs. a company web site.
TypePad ($14.95 per month for the “pro” level) costs a little if you want your site to look unlike a blog template.
Tumblr is a handy tool for communicating to others, but it doesn’t have commenting built in, which is how customers would communicate back.
Posterous is an e-mail-to-blog platform. E-mail photos, videos, MP3s or other files to Posterous, and your post appears online. Not the best format for most businesses.
Movable Type is most similar to WordPress, in that it’s flexible enough to build a custom site. But it requires a license, if you’re using it for business purposes (cost: $50-$1,000).