Absolutely. The popularity of reading blogs has grown at a tremendous rate. There has been no technological boom like blogging since the establishment of the Internet. Blogging has been around for several years, but it has reach incredible popularity recently and is here to stay for the foreseeable future. Recent estimates state that there are more than 10 Million blogs in existence today, and that number grows daily.
A blog is a great tool to increase traffic and ranking of your site. It meets the most important requirement of search engines which is regularly adding keyword rich content on your site.