Searches the web for sites that have reposted your blog posts.
The Google search of 10 sentanses for hundreds of blog posts is quite heavy and time consuming. If it were run when you opened your blog, when it would be almost impossible to use. (by you. Running the script does not affect other visitors)
I'm working on that.
In the next version.
Are you american? No, the plugin makes an assumtions based on several common sentanses. A similar technique is used in the music industry to find similar songs (damn YouTube). That is how the sites get rated. A higher score may mean a repost, but also that both of you quoted someone or that you have the same wordchoice.
Find the author/admin email and write them a polite message. If that doesn't work, write an angry one and CC the hosting company. Make sure you give links you both posts and to your license page. Often that won't work as well, but that's a human problem, not a software one.
Then anyone can quote, copy, repost and steal you content. If you don't care, plugin is not for you. I think that it's always good to add one and to make it as little restrictive as possible. I recommend Creative Commons Attribution-Share Alike http://creativecommons.org/licenses/by-sa/2.5/
Please run open this page "http://your-blog-location/wp-content/plugins/wp-kradeno/wpkr-search.php", save it as a file and send it to me (yurukov at gmail.com) I'll look into it. Although this plugin should not interfere with any other plugins, you never know. Often heavily customized WPs (like that of my blog) do not behave as the official version.
A reported problem may be the configuration of php on your server or the blog. Since the searching script runs for quite a while, it uses a lot of memory, so if you have a problem, try increasing the momory limits in php.ini and wp-settings.
You could copy my code (with CC) and use it on your site. 90% of it is in the functions in wpkr-search.php. The rest is extraxting the text of the articles/sites.
"Stollen" in Bulgarian.