Most Blogs contain following elements
Comments:
These are responses and reactions from the blog readers to post by the author.
Posts:
blog posts are the updates added to the blog by the author or any contributor. These posts can be of few lines or a whole article of several hundred words.
Plug-ins:
There are thousands of plug-ins available; this plug-ins helps the owner of the blog to display pictures or advertisement in the sidebar of the blog. Plug-ins might be something that increases the likelihood of the blog being found by search engines.
Widgets:
Widgets enhance the display or add to the functions on the site.?For example, you might want to use the calendar widget so that a calendar appears in the margin of your blog and the days on that calendar are hyperlinked to the posts (updates) you added on that particular day.
Blogroll:
These are the list of links to other blogs that the author recommends.:
Theme:
Each and every blog design is known as a theme. There are many hundreds of themes freely available and there are commercially produced themes which anyone can buy. Some bloggers have a theme tailor made to their specifications.