According to the theory of SEO,writing a blog is very effective.So what will a blog give you?
Blogging is gret fun! Yes, blogging can be great fun. Just open you posting window and go for it without the restrictions of corporate style guides and other impediments to creativity. Got something to say? Just say it. The other fun aspect of blogging is that people can post comments about your blog posts. You posts plus reader comments all become valuable food for the search engines.
Blogging is dirt cheap. The most powerful blogging systems are free. Wordpress seems to be the blogging standard and now comes standard with many cheap web hosting packages. For less than $100 per year anyone can get their own domain with blogging included.
I wouldn’t use one of the free blogging services unless you are really desperate. You can’t be sure if they will always remain free and your posts will be building up someone else’ asset rather than your own.
Blogging is fast and easy. If you can use notepad you can blog. The user interface is very intuitive and allows you to add and edit, text, pictures, videos, whatever you want. Want to change the look and layout of your blog? There’s literally hundreds of themes available that take less than a minute to upload and install. » Read more: Blogging For Success