I've consolidated the work into <http://groups.yahoo.com/group/boost/files/boost-pending.zip> I saw a pri_queue subfolder in the libs directory. Should priority queue documentation go there? In <boost/graph/graph_concepts.hpp>, a comment on the BufferConcept class implores it to move out of BGL. Will it eventually move to <boost/concept_check.hpp>? Should the documentation accompanying it similarly move to libs/utility, to maintain consistency? I'm also not sure about where boost::queue documentation should go. Fortunately, only two documents mention it: breadth_first_search.html and breadth_first_visit.html. I've added documentation for a new UpdatableBuffer concept, which both mutable_queue and fibonacci_heap currently model. In the spirit of the Buffer concept documentation, only the update() function and its associated time complexity requirement are added. The zip file contains all of my proposed changes. Once again, feedback appreciated. Cromwell Enage __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools