Tech Cadre, et al.:
It actually is easy being green if you use an online bookmarking tool. Having printer issues? No worries. You and your students don't need one. With Diigo, you can use save, highlight, tag, and bookmark articles in the cloud and access those from any computer. (Do be sure to tag for quick sorting.)
Once I started using Diigo, it became my first stop for professional development over Twitter (still a great tool for that, though). Like Facebook, I can follow groups and individuals who make their bookmarks public. I can LIKE and comment on their posts too. I also choose to get daily updates via email which makes it efficient and manageable.
Teacher Console info:
After you join Diigo, go to www.diigo.com/education and request a teacher's membership. It's free and provides you access to the Teacher Console which can be used to set up individual classes.
Benefits: 1) Students can help to build a set of class bookmarks and annotations; 2) students do not need email addresses to register; 3) you can check individual students' highlighted sources without having them print-highlight-staple-pileonthemountainonyourdesk. It's much more efficient to check, and it's very, very green.
Drawbacks: 1) You have to input the names and IDs (hint: pull info from PowerTeacher or Pinnacle and save it as a CSV file); 2) Students have limited sharing, commenting, and following options.
If you teach older students, it may be easier just to have students follow you.
You can follow me at firstname.lastname@example.org