Copyscape.com - Detect plagiarism on the internet

Copyscape is a site that aims to get rid of a big problem: the ease with which work can be plagiarized on the internet. You can register your content with the site and put their banner on your article, proclaiming to all that your work is protected by Copyscape. Then you enter the url address of your article on the Copyscape site to see if anyone has written something that is similar enough to have been copied. The site uses a Google API to search for similar word content, so that you can see if anyone has cited your work or even copied you.

“Copyscape is dedicated to defending your rights online, helping you fight against online plagiarism and content theft. Copyscape finds sites that have copied your content without permission, as well as those that have quoted you.

The site is a logical companion to anyone who blogs or posts content on Wikipedia and so on. Even if your content isn´t actually copyrighted, it is still good to be able to know when others are using it.

Five whopping cents for a search is not going to add much to the site´s revenue (which comes from ads), and it may turn off users who don´t want to bother with the time or the small cost.