https://docs.google.com/document/d/1HTOz88eQOXQgn5c-BFYckcIPsrMRJF8-tDOOWbIgRVI/edit?usp=sharing
https://github.com/linkedannotation/BLAH2/wiki
blah@googlegroups.com
(Group homepage: https://groups.google.com/d/forum/blah)