Other
Menorah Ministries: The Star of David
A detailed description and history of the famous Hebrew symbol. The article states that the symbol can not be traced to King David himself but that the use of hexagrams was found in Jewish magic dating back to the 6th century C.E.
Israel Ministry of Foreign Affairs
Israel Ministry of Foreign Affairs: King Solomon's Seal
An article which explains in detail the famous symbol of Judaism also known as the "Star of David".