This paper examines the evolution of the web from static HTML browser based on dynamic and participative web2.0, called Blogs. Now a days, an increasingly quick and popular way to share your thoughts with the world. Blog is short for web log-an online journal where information (not only text, but also audio, video and photographs ) is posted on a regular basis and appears in chronological order. This paper is a try to discuss about the various characteristic features of Blogs, types of blogs, which services are provided by Blogs, advantages, disadvantages. Blogs explores the possibilities of applications of these interactive, collaborative and participative tool of Social-Networking. It will be great enhancing existing and the feasibility of introducing next generation information of the world wide.