scrible | smarter online research - annotate, organize & collaborate on web pages | Neue Medien - Pro und Kontra | Scoop.it
scrible lets you highlight and annotate web pages and easily save, share and collaborate on your web research with others. Sign up for free!

Limited storage for the basic edition, but more colours for annotations (you need it to show different aspects by highlightening the text, i.e. mistakes, contents , grammar, new words...)