You can post events, schedule reminders, and even allow your students to check the calendar. So it helps you combine the Filaments of the Web with a learner's mentality.
Students can read the text on web, and simply click on a word to get a handy definition.
Click here for other interactive exercises makers from Swarthmore. Blink is another site that keeps your bookmarks on the web. Then you can also play off-line. Mypoll.net is an easy way to add customized, interactive polls to your web site. Masonlane Free Web Polls Webmaster Resources Ballot-Box.