A blog in simple terms is an open website. It consists of entries that are contributed by the viewers to the website. A blog includes different types of entries such as text, image, video, etc., depending on its nature and purpose. In blogs, the entries are presented in the chronological order. The latest entry will occupy the first position. The most popular types of blogs today are marketing blogs and business blogs. These are intended to share the views of customers about a particular product and thus give a better idea about the product before they purchase it. Most of them are free blogs, allowing the viewer to post his views or comments about the topics under discussion in the website without any commitments. Blogs are greatly helpful because of their interactive nature. People can share the information through the blogs. Blogs know no boundaries. To create a blog, all you have to do is to design a simple website which shares the information that you wish to be discussed under the blog. Blogs have become effective marketing tool because of its content value. Good blogs invite many viewers to it, improve the value of the theme or product under discussion, and they also enhance the Search Engine Optimization (SEO) of the websites that have got links in them. Many website owners participate in blogs and add their URLs in their blog space. Viewers who go through the blogs will notice these URLs and if interested will visit these websites. Thus blogs are acting as effective channel to website promotion.