This bibliography contains some of the key texts that have bearing on the conceptual approach to metaphor. (It is basically a selected export of about 80 entries from my EndNote file. The complete list of entries that I have tagged as 'metaphor' in my database is over 600 - I'd be happy to share it.) Some of the texts are annotated in a fairly haphazard fashion. Anybody can register on the site and contribute further entries. Benjamin's MetBib, is of course, the really comprehensive collection, but then, it is not free.