geographic_information_systems:geography

	A2B
		location based search engine finds websites by their proximity to a given location. it accepts geourl icbms and geotags for adding sites, and has an open api for developers.

	Blogmapper
		blogmapper lets you associate blog entries with hot spots on a map. when you click on the spots, the entries appear.

	Inforain: GIS Mapping for the Rain Forest Coast
		watershed, estuary and forest information for the north american coastal temperate rain forest bioregion.

	Java Location Services
		geospatial data and technology portal.

	Marinamap.com
		find marinas by mouseclick on the marinamap sea chart.

	Nature Conservancy
		provides staff and partners with gis knowledge, systems, data, maps, and community resources. some sections are limited to conservancy and natural heritage/cdc staff.

	Sportsmapping.com
		mapping and gis source for golf courses and communities.

	WiFiMaps
		locate free wi-fi, commercial hotspots, community wireless networks, and wardriving data with this web based gis mapping application.

scheme:lisp

	3DScheme
		two systems for windows with built in "industrial-strength" solid modeler based on the acis solid modeler geometric modeling kernel.

	Chez Scheme
		reliable, high performance implementation, by cadence research systems. free version exists. [commercial]

	DrScheme
		full scheme programming environment for macintosh, many unixes, windows. has module and object systems, platform-independent graphics. ideal for beginners; one of the major design goals is a flexible teaching environment.

	EdScheme
		interpreter for macintosh or windows. has "friendly and convenient interactive programming environment" with language sensitive editor, full documentation. [commercial, free 14 day download]

	PLT Scheme
		advocacy and authoring group, umbrella name for family of implementations: drscheme (scheme, mzscheme, mred); books: how to design programs, how to use scheme; and teachscheme! project. university-based, supported by many volunteers writing code, documentation.

	RScheme
		portable, extended scheme with reflective object(-oriented) system, operating system services, modules, threads, many system programming features (integrates with, compiles to c or bytecodes) and useful extensions. [open source]

	Scheme 48
		a small and portable implementation based on a bytecode interpreter designed to be used as a testbed for experiments in implementation techniques.

	Scsh
		scheme shell, broad-spectrum system programming environment for unix, embedded in r5rs scheme 48. supports concurrent system programming, sophisticated i/o and automatic garbage collection for process resources.

	STklos
		derived from stkn implementation based on an ad-hoc virtual machine, byte compiler; compilable as library to embed in other programs, has object system with mop, multiple inheritance, generic functions, multimethods, module system, full r5rs tower of numbers, link to gtk+ x toolkit; almost r5rs compliant (in process), to support as many final srfis as possible, now supports srfi-6.

	T History
		fairly detailed, by olin shivers.

	The Ksi Scheme Interpreter
		ksi is a portable, embeddable scheme implementation written in c. unfortunately its documentation is all in russian at this point.

	TinyScheme
		based on mini-scheme, tiny implementation, almost a full r5rs scheme. goal: embedded scripting use, but works as standalone interpreter and extensible shell tool. recent changes reduced executable size to about 64kb on linux/x86. [bsd]

	XLisp-Plus
		lisp version based on, and evolutionary improvement on, experimental xlisp.

logo:lisp

	Digitool, Inc.: Object Logo
		object-oriented, extends abilities and performance of traditional logo, useful for users of all ages, elementary school students to professional programmers; potent education tool and means to explore programming, general and more so object-oriented. no longer supported.

	ELICA (ELICA, Educational Logo Interface for Creative Activities)
		a logo based system for windows. download the logo system and many related interactive projects.

	Logo Computer Systems, Inc.
		microworlds, microworlds pro, my make believe castle and other educational software titles. makes the process of creating school projects a rich learning experience, fosters development of problem-solving strategies, critical thinking skills, creativity.

	Logo++
		simplified syntax logo, very easy, within a few minutes one can start programming and drawing complex graphics with few lines of code; runs in graphical environment (linux x11, windows), has own editor; coded in c++. [open source, gpl]

	MSWLogo
		advanced multimedia windows version of ucb logo, available in many different languages. free software downloads, tutorials, electronic books, links.

	XLogo
		a logo learning and drawing application written in objective-c for mac os x. [open source, bsd license]

clipper:languages

	Alaska Xbase++
		a 32bit compiler for the clipper/xbase language on the windows platform.

	CA-Clipper
		official home page.

	FlagShip
		a database development and porting system for moving xbase based languages to unix.

	Harbour project
		a public project for an open source clipper language compatible compiler. it will become a 100% clipper compatible compiler for multiple platforms and includes all source code

prolog:languages

	Amzi! Prolog + Logic Server
		this extensible prolog version runs under windows, linux, solaris and hp/ux, supporting development of client and server applications embeddable in the web, c/c++, java, delphi, visual basic and other environments. an ide is available for windows along with an interpreter-based tutorial.

	Babol Prolog
		prolog wam-based implementation. entirely written in c. still under construction.

	Logic Programming Associates
		win-prolog, dos-prolog, macprolog32 compilers. products range from prolog++ an oops extension, flex an expert system toolkit, and various web based technologies. [commercial]

	Logtalk
		an object-oriented extension to the prolog programming language. it integrates logic programming with object-oriented and event-driven programming. compatible with most prolog compilers. [open source]

	Strawberry Prolog
		this prolog compiler for windows 95/98/nt and unix/linux supports ole and prolog cgi scripts. strawberry prolog is suitable for client-server applications and has unique debugging facilities.

	SWI-Prolog
		stable and free standard prolog implementation. targeted primarily at research and education. windows, linux and unix versions available. comes with a visual debugger and a gui environment.

	Trinc-Prolog, an object oriented prolog for Windows
		trinc-prolog is a new development tool for the prolog language. trinc-prolog supports the iso prolog standard and has extended the prolog language with innovative object oriented features. tpwin,an oo class library is available to develop windows applications.

	Visual Prolog
		a full-featured programming environment is offered with all the facilities necessary to write mission-critical, commercial-grade applications. a freeware version is available.

soap:web_services

	EasySoap++
		a cross platform c++ implementation of the soap 1.1 specification.

	IdooXoap
		java implementation of rpc over soap. uses wsdl and scl for service descriptions. by zvon.org.

	PEAR::Package::SOAP
		this is a soap integration for php (pear package).

	SOAP::Lite for Perl
		implementation of soap in perl, includes modules for xmlrpc and uddi. by paul kulchenko.

	SQLData SOAP Server
		an implementation of soap 1.1 in c++. by sqldata systems, inc.

	TclSOAP
		an implementation of the soap protocol in the tcl scripting language.

	White Mesa SOAP Service Implementation
		soap implementation as a windows nt service. supports wsdl. by robert cunnings.

	Wingfoot SOAP
		a lightweight implementation of soap 1.1 for j2me (cldc and cdc).

forms:xml

	PureEdge: Internet Commerce System (ICS)
		application suite that supports xforms; developers of extensible forms description language (xfdl).

	X-Smiles.org
		browser that features an implementation of smil 2.0 basic profile.

dhcp:protocols

	DNS One
		a commercial dhcp and dns server integrated in one box. a product of infoblox, inc.

	FutureDHCP
		portable implementation of the server and relay agent components as specified in rfc 2131 and rfc 2132.

	ipLease DHCP Server for Windows
		server for windows systems. a commercial product with a free trial period.

	Microsoft DHCP Basics
		a basic technical page covering the microsoft implementation of dhcp client, server and relay-agent, over different ms-windows versions.

	Microsoft Release Notes for Windows NT 4.0 Service Pack 4
		a list of articles from microsoft about issues with dhcp (as well as dns and wins) over windows nt server. useful for problem solving.

rtsp:protocols

	Cisco IP/TV
		video server and viewer which implements rtsp, rtp, h.261, and mpeg video. [client and server]

	Helix
		media delivery platform for streaming multimedia productions. supports rtsp/rtp delivery of avi, wav, mp3, and mov files, as well as rtsp delivery of realaudio and realvideo [server, proxy, and sdk; source available]

	MPEG4IP
		mpeg-4/isma interoperability suite produced by cisco. supports mpeg-4 audio (aac), mpeg-4 video, rtp, rtsp, mp3 (using rfc 2250). includes client, server (darwin), and encoding tools. [client and server, includes source]

	Open Mash
		open mash supports the mash streaming media toolkit and distributed collaboration applications based on the internet mbone tools and protocols. [client, includes source]

	RealPlayer
		realnetworks cross-platform multimedia player. supports rtsp/rtp with h.261, u-law, a-law, mp3, dvi. [client]

	Sun Streaming Server
		server implementation of rtsp, rtp/rtcp, and sdp. delivers on-demand streams from hinted mpeg-4 (.mp4), hinted apple quicktime (.mov) and hinted 3gpp(.3gp) files. live streaming is also supported via reflection of rtp sources (free stream-limited server download)

	Video on Demand
		java-based video server produced by students at østfold college, norway.

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