I'm not sure if any of you use this, but this extension is awesome. I installed it 2 days ago and it helped completely organize both my offline and online materials right in the browser. (drag and drop) It gives me a place to link all the e-books I haven't read yet... etc..... Anyway...... I hope this helps somebody organize their businesses like it did mine.... If you know of any program better.... (that's free of course) Let me know.