What kind of blog? Also, you should use wordpress...
DavidB 44 Junior Poster
Hmmnn... usually somebody planning to start a blog already has ideas. They are passionate about something and can't wait to start writing.
Search for your favorite topics to get ideas.
Do blog searches for those topics. There is lots out there.
Once you have some ideas, write several blog posts in a word processor. Write them well, edit them a few times, get them ready for prime time. If you can't write several posts in a word processor, there is no point going through the trouble of setting up a blog.
If you are confident you will be able to blog regularly without running out of ideas, try a free blog on Blogger. WordPress is also popular, but it seems to be a popular target for hackers, and you may not want the hassle of administering a site and all the behind-the-scenes work. There are many other options too.
Good luck.