1) It must describe your blog: it is probable that lots of people will see a link to your blog before having the chance to actually read it. If just by looking at the name they can figure what the blog is about they will be more likely to visit it.
2) It must be easy to remember: suppose your blog talks about exercise, fitness and health food advice in general. Naming it "The Every Day Guide to Exercise, Fitness and General Health Advice" would be an accurate and definitive description of the blog, but would it be easy to remember? Stick with simple names. " A Guide to Fitness and Health"
3) It must be equal to the domain name: this rule is often ignored, probably because finding a descriptive domain name that has not been registered yet is a difficult task. If your domain name does not match your blog name you will probably lose some readers. When people visit your blog through a link they will just read the name of the blog. Should they decide to revisit the site a couple of days later they will just type that name followed by a dot com. If they do not find your blog once they hit enter they will just go somewhere else.
Posted via OnFast - http://www.OnFast.com