There was enough positive response to the "Interest in B-tree library for Boost?" thread that I plan to continue development. * The immediate action items for the next few weeks are to get the library working with more compilers, to move the timer and endian stuff to detail, and to begin testing on Linux and other Unix-like platforms. Also try to extend the test cases to uncover more bugs. * Variable length keys and data, particularly strings, are a very high priority. * Development will be hosted at http://github.com/Beman/Boost-Btree - I'm liking Git quite a lot and using it is the best way for me to learn more. For those who want to follow along, the git equivalent to an svn checkout is: mkdir btree cd btree git clone git://github.com/Beman/Boost-Btree.git . and the git equivalent to svn update is: cd btree git pull * Please give the library a try. I need feedback based on actual use. Thanks, --Beman