A couple of additional links, since a great article popped up from Robert Pearlman on Collect Space since I posted this gallery. Robert has the story behind the Flickr archive, which is the story of Kipp Teague's labour of love: http://www.collectspace.com/news/news-100815a-apollo-moon-photos-flickr.html. The Project Apollo Archive (http://www.apolloarchive.com/apollo_gallery.html) is another of Teague's and it's been my favourite browsing place/site to sift through with coffee all the time page for ages. And it's worth mentioning that a lot of these images -- because they aren't new and unseen! -- are beautifully contextualized in the Apollo Lunar Surface Journal (http://history.nasa.gov/alsj/main.html) and the Apollo Flight Journal (http://history.nasa.gov/afj/) projects.
(edited October 9, 2015)