Knowledge is created through conversation. Conversations can take place between friends and colleagues in the “here and now.” But, they can also take place over centuries, with the participants changing but the theme remaining the same, and the conversation being recorded in thousands of artifacts, like books, pictures, and digital files. In many conversations users need sophisticated processes to facilitate the conversation. Facilitation not only enriches conversations with diverse and deep information, it also serves as a memory keeper, documenting agreements and outcomes to facilitate future conversations. The library serves this vital role for many communities.