Canvass area history departments for any teacher-specific online resources. There are multitudes of teacher-oriented websites that provide information about history. The website besthistorysites.net, for example, has a reliable list of history websites, covering everything from prehistory to modern history.
Increase your knowledge by reading history magazines online, including, for example, Smithsonian Magazine's website smithsonianmag.com. These history-rooted sites often contain in-depth articles, new research, images and video clips in the history and archaeology sections.
Watch historical documentaries online and test yourself periodically. Documentaries can often be found in the history section of major websites, including, for example, PBS, university sites and more.
Play online history games to learn vocabulary and memorize historical facts. These interactive games challenge learners of all ages on their knowledge of history. Some sites also provide reading for the student to complete before playing the games. Use online history games to add to your body of knowledge in a way that is more enjoyable than memorizing information from flash cards.
Research online history degree programs through distance-learning resources and enroll in classes at an accredited online university. There are several history degree programs offered online, ranging from associate's degrees all the way to PhD.'s. Online degrees cover a variety of specialties and are an option for those wishing to earn a degree in history.