You make some great points. Here's a shot: Gradifi is a web application that recommends courses to students based on courses that they've already taken. In add

You make some great points. Here's a shot: Gradifi is a web application that recommends courses to students based on courses that they've already taken. In addition, students can share notes with one another and can sell them to people who they don't know. Books that you list are advertised for free alongside course descriptions on the website. I'm afraid of putting too much text on the front page and perhaps scaring people away. Maybe that's an unfounded fear. Maybe screenshots may be helpful as well?