The History Place
The History Place: The Vietnam War America Commits
This site from The History Place provides a lengthy timeline, accented with many quotations, explaining how America came to be directly involved in Vietnam. This is a great site to check out on the subject.
Vassar College
Vassar: National Liberation Front of South Vietnam
This site from Vassar University contains the platform of North Vietnam's communist party, the National Liberation Front, with a call for reunification of North and South Vietnam.