Google displays rich snippets to display links from your website or blog on their search results. What is shown in these search results actually ends up deciding if someone will click on that link.
This is why entering proper meta title and meta description is a good idea. Google has a nice online tool that allows you to check how the URL you enter is displayed in search results.
Visit Google’s Rich Snippets Testing Tool and enter the URL you want to check.
Google will display how the title will be shown along with meta description. For example in the above image the snippet testing tool lets us know that the author profile page does not have a rel=me link to Google Profile.
It also has good examples which could be helpful.
Try out the online tool and drop in your comments.