Blog provide the facility to commenting. Comments on blog are the way for reader to ask his/her query. He/she leave its suggestions in comment box. Blogger will analyze these queries and give appropriate solution. Write a comment on a blog may looks simple, but it is to hard write effective comment. Comments will show your personality because in blog, your words say about your mind. In this article I would like to tell you how to write effective comments on blog. 1. Your purpose – First, think about your purpose of comment. If you read a blog post, then you can give the suggestion, ask the query, create backlinks or send a message to the blogger. Many users will comments without any purpose. This is the time consuming. Your time is important for you. 2. Profile – Your profile create the first impression to the viewer. Mostly blog have the facility to comment with profile. In mostly blog, you can comment with Google+ profile, Facebook profile, and Twitter profile. So,