I agree that you could set aside a fair number of archives just by collecting those running efiction and astolat's code (where I hate the former and adore all archives using the latter :).

But if we're still going one by one:

TPM: Master and Apprentice (http://www.masterapprentice.org/html/archive.html)

Pro: The Circuit Archive (http://www.thecircuitarchive.com/)

XF slash: Down in the Basement (http://basement.ditb.org/)