PBS
Pbs: Red Files: Secret Soviet Moon Mission
PBS offers biographies and stories from the early days of the Soviet Space program, which prompted the Space Race and nuclear arms race between the U.S. and the former Soviet Union.
CGFA
Moscow University Astro Net: Man Enters Space
This site presents a brief overview and newspaper clip documenting the first manned space mission. Soviet cosmonaut Yuri Alexseyevich Gagarin became the first human in space on April 12, 1961.