Many materials are available for free over the internet. Some of them are untrustworthy, but many others are excellent. The AUR Library Catalog tries to pick out the best.

Some catalog records link to specific sites, such as The Theban Mapping Project that has interactive maps, articles, and a wealth of other information.

Other records go to electronic serials. As only a single example, the Human Development Reports from the United Nations are online and available through the catalog. Another type of electronic serial are those created by Think Tanks.

There are also many electronic books that have been added to the catalog that are available through the Digital book Index. One example is that of George Orwell. When you click on the link, it leads to many of his works available electronically.

There are many other electronic materials in the catalog. Feel free to explore them.