Lunar and Planetary Institute (LPI)
It is NOT the mission or the job of NASA employees, employees of LPI, or employees of other NASA affiliated archives to search for intelligent extraterrestrial life on the Moon, Mars, planetary bodies of the solar system or the universe. DO NOT CONTACT THEM with questions of this nature. Below are links to their public archive – a library of photos and other documentation. Do your own research and make your own opinion of what you see or read – leave them alone. Also of note, although these images are considered public domain, please adhere to the NASA image usage policy.
Flickr Project Apollo Archive
Flickr's is hosting an impressive collection of Apollo mission images. Anomaly hunters should note that the images have a particular JPEG pattern that can mess with fine detail analysis.