Hi, In the library list (http://www.boost.org/doc/libs/), I don't think the 'build & link' field is very accurate. There's a recent bug report about pool, which apparently isn't header only. I suspect it's wrong for some other libraries as well, and for some libraries the situation is a bit more complicated. So, I'm thinking about removing it. Incorrect and misleading information can be worse than no information at all. Does anyone have an attachment to it? Daniel