alt-x is an experimental space founded and developed by Mark Amerika. Therefore, it has a certain artist's web site air  -and, in fact, its best known production is Grammatron, a piece by Mark himself- but it clearly transcends such a designation, because the site currently features work by more than 500 artists, writers, musicians, designers and programmers. The result is that the site is the nucleus of a transdisciplinary community of participants/creators, doing research in diversified but concomitant fields, such as fiction, experimental literary creation, new media theory, real-time audio and video, and Internet installations and activism.

betacast is a private initiative, recently born in England, but which has rapidly acquired widespread recognition for its professionalism in the field of net.broadcasting.  Its 2500 subscribers and 500,000 monthly visitors attest to this.  Its great success is undoubtedly due to its carefully selected intensive programming of live events and its powerful archive of remixes. 
 

Blast is an absolutely pioneering space -it was founded in 1990- on the Internet.  Developed by the X-art Foundation, its prime mover is the artist and theorist Jordan Crandall.  Blast develops debates on some of the fundamental events that have marked the history of art on the Internet, providing important materials that facilitate a critical approach to the phenomenon of new artistic practices. Among others, Blast hosted and co-ordinated the international debate that arose from documentaX -it is currently hosting a new series of debates on artistic practices on the Internet- and is the headquarters for VOTI (The Union of the Imaginary), an international curators' collective founded to investigate the evolution and active transformation of the forms of contemporary exhibition. 
 

With an excellent techno-minimalist design --within what we could call a 'clear line' style that is very easy on the eyes-- convex tv is one of the pioneering spaces that broadcast streaming images and sound in real time on the Internet.  Promoting special festivals, like the celebrated net.radio.days, and with multiple sections devoted to information on the best tech sessions being held in different European cities, convex tv is also known for its participation in the mythical hybrid workspace at documentaX, with its particular virtual parcours.

::eco:: is a modest attempt, which we launched on aleph, to provide the Spanish speaking net.art community with a useful instrument for disseminating its productions in that language.  With a rapid expansion, reaching the number of 800 subscribers in less than a year, the average flow of messages is currently three per day.

::eco:: operates like a newsgroup on Internet art through three associated systems: the ::eco:: list, which posts the messages sent by subscribers; the summary list ::eco_sintesis::, sent out biweekly, which collates the messages, adding additional information of interest to subscribers; and the online pages, which automatically post ::eco:: messages, thus constituting a Spanish language reference panel for following the latest Internet art.

The Walker art Center is undoubtedly the first museum institution to have reacted in a lucid and creative way to the challenge that the Internet represents for the future.  Directed by Steve Dietz, Gallery 9 is the first true 'net.art Department' created at a contemporary art center, inaugurating an experiment in the forms with which a museum can development activities in this field -and on all fronts.  Thus, it has organised the biggest international Online Museums symposium held to date, it has promoted some of the most interesting online shows (Beyond Interface in 1998 and now the Shock of the View series), and has also audaciously plunged into possible forms of public collecting of net-art, acquiring for the Walker collection the mythic äda web, thus saving it from oblivion.

nettime responds to a media-activist conception of the Internet.  Linked, on the one side, to the 'society for old and new media', and on the other to the group adilkno (foundation for the advancement of illegal knowledge), nettime's list -'slightly moderated'- and archive constitute the quintessential self-reflexive node in the entire development of artistic practices on the Internet that are self-conceived as media activism and instruments of social intervention.  Centred at this time on the analysis of the Internet's critical possibilities, nettime regularly promotes meetings and events of all kinds that touch on the effective transformation of the social space, while compiling the articles published in a series of volumes which in some way constitute the bible of artistic-communicative practices on the Internet -the celebrated ZK Proceedings-  with the fifth volume just about to be published.

If the first phase of the Internet era has been marked by the possibilities of hypertext, it seems clear that the next phase will soon focus on the Internet's possibilities for broacasting streaming image-movement and sound.  The programming of hyperimages thus constitutes a field for research and experimentation that is really taking off, and nirvanet is undoubtedly one of the most successful spaces in consolidating this post-media experimentation, reaching the chilling figure of 20 million hits (it is available in several languages, including Spanish).  Its weekly programming features three new videos on the front page, and it publishes a monthly online magazine about electronic music.

Park 4dtv works in the field of broadcasting streaming images and sound in real time, but following strict patterns of independence and noncommercialism.  Centred on the development of programming art for broadcast on net.tv channels, it produces work in a multiplicity of media and technical possibilities.
 

RaveFace Radio is the first experience in multimedia online broadcasting of streaming images and sound in real time that has been produced entirely in Spain.  Developed by Polygon, an eight-member group, it concentrates -although not exclusively- on broadcasting music and images produced and remixed by the group itself.  Polygon works as a musical group (break-beat, drum&bass, junglejazz) and as VJs, putting everything on the Internet.  RaveFace also features a magnificent archive of recordings of some of the best DJ sessions ever held in Spain.

Without Rhizome, there would be no 'international net.art community', or if there were, it wouldn't have the same form as it does.  Rhizome is the place where 'everybody' gets informed and communicates the results of their creative practices on the Internet -and logically it is also the place where everybody goes to find out what's happening.  Thanks to this, the form that the net.art community has adopted looks, at least here, like a 'community of media producers' -that is, like one where the audience and the collective of 'broadcasters' tend to coincide.  If that is indeed the case, it is due above all to the experience of these kinds of lists, which incite their audience to online participation.

The Thing is one of the first organisations on the Internet aimed at serving the art community. The majority of prestigious artists who have produced work for the Internet have put it on the Thing -which is also a complete provider of Internet services.  Besides the multiple post-media formats that can be found on its pages (mailing lists, net.t v, net.radio), the 'communicator' on its most recent interface is a totally fascinating, brand-new innovation. It enables visitors to the web site to know which other visitors are online at that moment, to learn more about them, and even to enter directly into contact with them, online. Besides the original hub in New York, The Thing network has spawned several European nodes, such as The Thing Vienna, Berlin and Amsterdam.

Xchange is a network of net.radios, of Internet broadcasters, that brings together in the same space nearly 50 different stations.  It runs a mailing list with specific information on net.radio programming, has an online calendar, and offers live broadcasts.  Among others, Xchange includes such mythic radio stations as backspace radio, convex tv, OZOne, radio @irational, and radioqualia.