"The popularity and impact of the pilot have been remarkable," said Michelle Springer, project manager for digital initiatives in the Office of Strategic Initiatives. The site is averaging 500,000 views a month, she said, adding that Flickr members have marked 79 percent of the photos as "favorites." The report recommends that the library continue to participate in an area within Flickr called The Commons and explore other Web 2.0 communities.

"Increasing the ability to engage and connect with photos increases the sense of ownership and respect that people feel for these photos," the report states. "Lessons learned from this project provide guideposts to the type of experience that people would like to have with our collections." Since the project began, 16 additional institutions from the United States and other countries have begun sharing their photo archives and inviting the public to contribute information, the library said in a blog post.