Add your url to the content people copy from you – great for SEO
The number one signal that search engines use to determine how relevant your site is, and therefore how high your site ranks, is the number and quality of links that link back to your site. Tracer automatically adds a link back to your site when content is copied and pasted. When your content is pasted onto a blog, Twitter, or another web site it has a direct impact on your search ranking.
By seeing what words and phrases users are copying from your site you can better understand how you might select your keywords, meta-tags, tags, and even AdWords.
Also, Tynt.com is an increasingly popular place for people to find interesting web sites and content and generates visits to your site when content is copied. (Read more: http://tracer.tynt.com/features-and-benefits-of-tracer#ixzz0MzVttmTd)
Try it to day at http://tynt.com/
(By the way, I have just installed Tynt on our blog and site as well)