How do you find a blog on blogspotcom?

Many people come across blogs via search engines like Google. Other ways to learn about blogs are social networks and links from other blogs.

First you go to blogspot blog,then click on comment page. If the comment page is available,then write comment there.

Usually a company that has a blog and makes sure to update it from time to time will offer a link to it from their website. You can also search the web (via search engine) for "[company name] blog"....

You can use: Wordpress.com Blogger.com

If you're looking for information about the writer of the blog you could try looking at the "About"page.