If they're marked up well in a page they can be beneficial for SEO, or used as a short summary of the expected content of the website/purpose of the business.<p>A lot of website use them in the page title as well as being displayed in the header: Page name | Site: Tagline<p>Some examples:<p>- Smashing Magazine — For Professional Web Designers and Developers<p>- The Next Web - International technology news, business & culture<p>Some interesting articles:<p>- <a href="http://www.onextrapixel.com/2013/01/14/effective-website-taglines-getting-the-message-across/" rel="nofollow">http://www.onextrapixel.com/2013/01/14/effective-website-tag...</a><p>- <a href="http://www.simplewebsiteservice.com/how-to-write-a-tagline/" rel="nofollow">http://www.simplewebsiteservice.com/how-to-write-a-tagline/</a><p>- <a href="http://www.toprankblog.com/2009/07/blog-taglines/" rel="nofollow">http://www.toprankblog.com/2009/07/blog-taglines/</a><p>- <a href="http://intuitivewebsites.com/articles/website-taglines/" rel="nofollow">http://intuitivewebsites.com/articles/website-taglines/</a>