As you are planning for second semester, you might consider including a customized Google search on your class website. With this tool, you can specify which sites are searched and which are ignored. For example, if you know several good websites for U.S. History resources, you can set up a custom Google search box on your class website that only searches those particular sites. It's pretty easy to do; there's
help available at Google Support; or you can just get started at
www.google.com/cse.