The 1950s Websites
This is a good place to start for information on Eisenhower. You can read documents from his presidency, access an Eisenhower chronology, and listen to presidential addresses. The site will tell you everything about Ike, from his family tree to his pets (a parakeet and a Weimaraner named Heidi).
When he sat down in the Oval Office the day after being inaugurated, President Eisenhower confided in his journal, "My first day at President's Desk. Plenty of worries and difficult problems." By reading Ike's personal thoughts, letters, and other writings, you can gain an intimate view of a president at work.
This site gives accounts of many of the most important events of the Cold War. The section on the '50s covers the Eisenhower years, including articles about the overthrow of the Iranian government, the Formosa Straits tensions, and the U-2 crisis.