Release 9.1 available at: http://groups.yahoo.com/group/boost/files/indexed_set.zip The sandbox version is also updated, but the ViewCVS tool has some delay and changes are not visible yet. Minor changes in the code and a big overhaul of the docs. I've rewritten a major portion of the documentation, and now the reference reflects the existence of sequenced indices as well as prior, regular indices. I'd very much appreciate if proofreaders can indicate on the understandability of the reference (things are a little more abstract now.) The tutorial, which is the only part left to rewrite to accommodate new sequenced index types, remains untouched as of now. Again, if some kind soul with skills at writing English volunteers to help rewrite the tutorial, my eternal gratitude would go to her/him (I'm suspicious I don't have perspective enough to write some good introductoy material on the library.) Joaquín M López Muñoz Telefónica, Investigación y Desarrollo