Myspace may be the most popular social networking site, but its share of plagiarism seems to far outstrip its market share. Along with its sister site Photobucket, Myspace is likely the current king of human-born plagiarism.

Every tool has a purpose and Copyscape has its. Though weaker on verbatim plagiarism, it can help detect cases where the work has been rewritten and the regular search engines struggle to keep up.