If you want to copyright your blog, there are a few things you’ll need to do. First, create a copyright notice for your blog using the following format: © (Your Name) 2014. You can find a copyright symbol here: http://www.google.com/images?q=copyright+symbol&btnI=I%26ei%3DUTF-8&hl=en&sa=X&ei=b5dUVE5L-nKW4gKfNDoBw&ved=0CA8Q6AEwBQ
Next, file a copyright claim with the United States Copyright Office. This will let you protect your intellectual property rights in your blog content. To file your claim, visit: http://www.copyright.gov/title17/
Finally, make sure that all the content on your blog is properly credited and attributed. This will help to protect your rights as the author of the content. To credit and attribute your content, use the following format: © (Your Name) 2014 Source: (Your Blog Title).