art & craft 
book arts
Center for Books Arts home base
(site)The Book Web list of links from U of Alabama Book Arts MFA program
(page)Book Arts Web comprehensive (also hosts mailing list)
(site)Cincinnati Book Arts links nice list of links
(page)Janet Maher Book Arts Links an artist's list of links
(page)
letterpress printing
Briar Press excellent reference on letterpress; includes classifieds for buying & selling presses (Briar also has files for die cuts & caps)
(site)Amalgamated Printers' Association "...an organization composed of letterpress printing enthusiasts—printers, typecasters and collectors."
(site)resources for letterpress printers huge list of links from amateur printer association site
(page)LETPRESS list archives lively mailing list
(archive site)
materials
Talas "Professional Archival, Conservation and Restoration Supplies" (binding supplies)
New York Central huge paper selection
Pearl Paint nice paper department; better prices than NY Central for tools
Utrecht less expensive than Pearl; tools & basics
Kremer Pigmente splurgy pigments
Kate's Paperie the one and only
Joann Fabrics comprehensive for craft odds & ends
P&S Fabrics not near as much inventory as in the store, but handy
typography & typesetting
Adobe type library handy font reference
TYPO-L site for the mailing list; includes archives, articles by subscribers, etc.
(site)Free font archives huge, excellent collection of links to free font sites
(page)UT TrueType fonts large collection of TT fonts for downloading
(ftp)
trade stationery/greeting card
225 Fifth Avenue wholesale gift trade building
(site)Greeting Card Association trade association
(site)Greetings etc. official publication of the GCA
(site)
publishing
Fine Press Book Association UK association
(site)Guild of Bookworkers US non-profit org for all book arts
(site)Independent Publisher trade mag for mass market indie publishers
(site)
general reference Mirriam-Webster dictionary and thesaurus
NYPL catalogs LEO and CATNYP
(site)Ref Desk one stop shopping... sort of a reference portal
(site)
Bartleby online amazing resource
(site)Cambridge history of lit from Bartleby online
(e-text)Bib-o-matic automatically formats your bibliographic sources