If you ever have the need to share multiple web links with your students or colleagues, try using fur.ly. You can enter all the web links you'd like to share and then generate one simple link to distribute to your audience. When you visit the fur.ly generated link, you'll get a nice interface that has navigation controls and a drop-down menu that allows you to move from one site to another quickly and easily. This would be great if you want to give your students a specific set of sites to work from. You can see an example here: http://fur.ly/360f.