Some business reasons for blogs:

-Establish expertise. Many consultants effectively use blogs to raise their visibility with their
target market.
-Create alternative media. A number of publishers have built viable media outlets with loyal
followings, as have companies that produce sponsored blogs, such as Gawker Media.
-Extend corporate communications. Blogs enable companies to present a human face and voice
to the public. The most notably example is Microsoft's Robert Scoble.
-Build community. Use blogs to grow groups around a technology, cause, political issue, or hobby
related to your product.