This article describes the archaeological work that is attempting to shed more light on the history of the Temple Mount. The article provides a great overview of the area’s significance to the three Abrahamic religions. The article is written by a Smithsonian Magazine reporter who participated briefly in the project.
http://www.smithsonianmag.com/history/what-is-beneath-the-temple-mount-920764/
More research to follow soon! -Olivia