ACM Special Interest Group for Hypertext and Hypermedia and the Web - Host of annual, international conferences since 1987. Access to full papers from the conferences in the ACM digital library, in addition to newsletters and conference information. - http://www.sigweb.org/
The New Review of Hypermedia and Multimedia - Archive of issues from this annual peer-reviewed review journal on the practical and theoretical developments in hypermedia and hypertext. - http://www.informatik.uni-trier.de/~ley/db/journals/hm/index.html
Cyberspace, Hypertext, & Critical Theory - Overview of interrelations between cyberspace and information technology on the one hand and critical theory and philosophy on the other. - http://www.cyberartsweb.org/cpace/
Word Circuits: New Media Poetry - Database of listings for hypertext, cybertext, and interactive literature. - http://directory.wordcircuits.com/
The Electronic Labyrinth - Both utilizes and focuses upon the medium of hypertext as it relates to literature and its concrete manifestations--from palimpsests to mechanically printed books to CD-ROMs -- throughout history to the present, with speculation on the future. - http://eserver.org/elab/
Wikinovela - Open-source collective hypertextual writing project. In English, Spanish and Basque. - http://www.wikinovela.org/
Weblog Kitchen: Hypertext Theory - An entry point for discussion of hypertext theory, rhetoric, and related topics. - http://weblogkitchen.com/wiki.cgi?HypertextTheory
Resource Center for Cyberculture Studies - An online, not-for-profit organization whose purpose is to research, study, teach, support, and create diverse and dynamic elements of cyberculture. Book reviews, and bibliographies. - http://www.com.washington.edu/rccs/
Suite101: Lit[art]ure - Interviews with new media poets and net artists, reviews of websites, criticism, articles and discussion. Part of Suite101, a volunteer editing project. - http://www.suite101.com/welcome.cfm/litarture
alt.hypertext FAQ - Answers to questions frequently asked in alt.hypertext and references to other online resources about hypertext and hypermedia. - http://www.csd.uwo.ca/~jamie/hypertext-faq.html
Lisbeth Klastrup: A Study of Interactive Reading - An MA thesis written in 1997 discussing, among other works, Joyce's afternoon, Moulthrop's Victory Garden and Gaarder's Sophie's World - http://www.itu.dk/people/klastrup/Disindex.html
Digital Literature: From Text to Hypertext and Beyond - Raine Koskimaa's PhD thesis, which develops critical approaches to reading hypertext through close readings of several hypertext fictions. - http://www.cc.jyu.fi/~koskimaa/thesis
ht_lit Mailing List - Instructions on how to join ht_lit, a low-traffic but valuable list a lot of hypertext theorists are members of. - http://www.wordcircuits.com/dir/ht_lit.htm
HyperContent, HyperJunk - "Hypertext theory as if the WWWeb matters". Includes a timeline of hypertext evolution and a concise taxonomy of varieties of hypertext, with examples and links. - http://www.robotwisdom.com/web/content.html
Hipertulia - Forum whose aim is to introduce hypertext and hyperfiction to the Spanish-speaking public. Includes some articles in English. - http://www.ucm.es/info/especulo/hipertul/indexeng.htm
Encyclopaedia and Hypertext - Hypertext as an object of philosophical reflection. The three main research topics are From Encyclopaedia to Hypertext, Hypertext and Text Theory, and The Image Atlas of Aby Warburg. - http://www.educ.fc.ul.pt/hyper/eng/
Hyperizons - Theory and Criticism of Hypertext Fiction, by Michael Shumate. - http://www.duke.edu/~mshumate/theory.html
BeeHive - Hypertext and hypermedia literary journal. - http://beehive.temporalimage.com/
Hypertext Resources at Eastgate - Resource list by specialists in hypertextual fiction and theory. - http://www.eastgate.com/Hypertext.html
Indra's Net or Hologography - Introduction to some of the work in 'machine modulated poetry' which John Cayley has been developing since the late 1970s. - http://www.shadoof.net/in/