Lemmings are cute, but dumb. If you tell them to jump off a cliff, they will. Just like the people who start blogs because everyone is doing it. Guess what happens after a little while? The blogs die.
In managing a list of many Web sites, most of which are blogs, I deleted countless sites from the list because the sites and blogs no longer existed. The people ran out of steam or had no reason to start them in the first place.
How do you know when a blog is right for your business? Learn why people start blogs, how they find their niche and how blogging tools can be used for more than blogs.