The Plagiarism Spectrum: Tagging 10 types of unoriginal work

"The Plagiarism Spectrum identifies 10 types of plagiarism based on findings from a worldwide survey of nearly 900 secondary and higher education instructors. Each type of plagiarism has been given a digital moniker to reflect the significant role that the internet and social media play in student writing." 

Other plagiarism web pages

• Plagiarism: what it is and how to recognize and avoid it (from the University of Indiana - Bloomington)
• Plagiarism.org 
• Avoiding plagiarism (The Writing Place, Northwestern University) 
• Plagiarism 101 . SUNY at Albany
• Writers handbook: Academic writing: quoting and paraphrasing [and how to avoid plagiarizing]).. Univesrity of Wisconsin