oreilly.comSafari Books Online.Conferences.
Articles Radar Books  


Category View | Alphabetical Listing | Detail Listing
Bitzi Bitzi is a freely-available open community "metacatalog" that allows users to describe, rate and verify any type of digital content based each file's uniquely-distinctive "bitprint" (cryptographic hash). Bitzi's comprehensive catalog of the available files from various decentralized networks (such as Gnutella, FreeNet and Napster) also provides users with a bit-level authentication system for determining if their downloaded files are complete and uncorrupted. Bitzi has a developer program and will be making its service available to the public in the future.
MusicBrainz.org MusicBrainz Metadata Initiative was formed to organize a means of exchanging metadata describing media files on the Internet. The vocabulary was employed in the development of MusicBrainz Metadata (formerly CD Index Project), a Dublin Core metadata application and free web service that uses XML and Resource Description Framework (RDF) to make artists names, track numbers, song titles and other metadata describing musical content downloadable to the user's CD player, MP3 player, Vorbis player, or other client. The first player to fully support MusicBrainz is FreeAmp.
PLATFORMedia LLC PLATFORMedia has developed a peer-to-peer distributed computation environment and search application that uses a corporate LAN's idle computing cycles to automatically-index document content, making it more easily accessible by users across the network. The company's Search by Concept application uses statistical inferencing and optimization techniques to systematically build 'mental maps' of each user's concepts of interest. Its scalable application architecture enables the members of a network to not only exchange files, but also manage the sharing of knowledge between nodes. The PLATFORMedia environment is tightly integrated with Microsoft applications such as Word and Excel and requires Windows 95/98/NT and the Java2 Runtime Environment 1.3 (JRE 1.3) or later. A free trial of the software is available for download.
Radio Userland Radio UserLand is a "personal radio station". It acts as a music organizer and player that lets people program music for themselves, and share their creations with others, over the Internet.

Radio UserLand also works as an HTTP server. Users can designate a folder they want to share; any playlists in that folder are available over the Web, to build community of people sharing lists of music they like. (Radio UserLand only distributes playlists and usage data in XML format. It cannot be used to distribute MP3 files or other types of media.)
RDF The Resource Description Framework, developed at the World Wide Web Consortium, is a "declarative language and provides a standard way for using XML to represent metadata in the form of statements about properties and relationships of items on the Web."
RSS 0.91 Rich Site Summary (RSS 0.91) is lightweight syndication format for distributing news headlines on the web. It is a format that originated at Netscape for syndication of content through Netscape Netcenter. The format was also influenced by the the Channel Definition Format, which Microsoft defined and saw its window of opportunity open and close with "push" technologies. Userland.com built and hosted the first RSS aggregator outside of Netscape. Dave Winer of Userland formalized the Netscape specification as RSS 0.91.
RSS 1.0 RSS ("RDF Site Summary") is a lightweight multipurpose extensible metadata description and syndication format. RSS 1.0 is a new version of RSS 0.91 that supports modular extensions. RSS is an XML application, conforms to the W3C's RDF Specification and is extensible via XML-namespace and/or RDF based modularization.
XDegrees XDegrees is developing software that will manage the flow of metadata in Peer-To-Peer networks. CEO (and Adforce founder) Michael Tanne and co-founders Anand Rajaraman and Venky Harinarayan (also co-founders of the Junglee shopping bot company) think P2P metadata, if utilized, can be more valuable than the data itself. In an environment where information and applications will be pushed out onto the network, rather than residing on servers, the software will also provide infrastructure services such as caching, messaging, naming and routing. The platform will also enable the development of P2P applications utilizing existing web development technologies, such as Active Server Pages (ASP) and Common Gateway Interface (CGI) scripts.
XNS (eXtensible Name Service) XNS (eXtensible Name Service) is an open protocol and open-source platform for universal addressing. Essentially, an XNS address is a permanent identifier for a container of data that could be personal data such as your contact information.

XNS is a platform for "web agents" to negotiate the exchange, linking, and synchronization of information among different parties. An agent might make sure that your version of a person's contact information is up-to-date by checking it against the XNS address.

XNS says that Web agents are based on technology patented by Intermind, one of the players in the once-popular "push" technology space. There are three patents involved, and they have been licensed to XNSORG, an independent non-profit organization responsible for governance of the XNS global trust community. All XNS agencies and agents are required to register with XNSORG.

P2P Weblogs

Richard Koman Richard Koman's Weblog
Supreme Court Decides Unanimously Against Grokster
Updating as we go. Supremes have ruled 9-0 in favor of the studios in MGM v Grokster. But does the decision have wider import? Is it a death knell for tech? It's starting to look like the answer is no. (Jun 27, 2005)

> More from O'Reilly Developer Weblogs

More Weblogs
FolderShare remote computer search: better privacy than Google Desktop? [Sid Steward]

Data Condoms: Solutions for Private, Remote Search Indexes [Sid Steward]

Behold! Google the darknet/p2p search engine! [Sid Steward]

Open Source & The Fallacy Of Composition [Spencer Critchley]