I2C Interface Support in Windows
Describes the new I2C interface support in the Microsoft Windows 98 and Windows 2000 operating systems, which reduces the development requirements of video board manufacturers
http://www.microsoft.com/whdc/archive/i2c.mspx

UIQ Technology
UIQ Technology creates and licenses the open software platform UIQ to leading mobile phone manufacturers. Our flexible and customizable user interface and development platform is pre-integrated and tested with Symbian OS, the leading industry standard operating system for smartphones.
http://www.uiq.com/

IOGateway
IO Interface ActiveX Control Package for computers running Windows-based operating systems to interface with Input/Output (I/O) interface boards, or I/O cards, providing one simple, generic and consistent platform for writing re-usable software to work with different interface boards.
http://www.industrialmightandlogic.com/

NeoTool Development, LCC
NeoTool specializes in healthcare systems integration and offers an industry best HL7 interface engine, consulting and training courses.
http://www.neotool.com/

Total Phase, Inc.
Offers embedded systems development tools that interface seamlessly with Windows or Linux development environment.
http://www.totalphase.com/

TMG Hypermedia
Internet consulting firm offering brand development, web application development, e-commerce, and interface design services.
http://www.tmg.co.uk/

VIDIX (VIDeo Interface for *niX)
A portable interface which was designed and introduced as interface to userspace drivers to provide DGA everywhere where it's possible.
http://vidix.sourceforge.net/

Adducive
Since 1998, Adducive has provided product design, analysis, and development for web, desktop, and over-the-phone speech recognition software. The website includes Brian Krause's bio and a collection of articles.
http://www.adducive.com/

Garnet Toolkit FAQ
Frequently Asked Questions about Garnet user interface development environment for Common Lisp and X11 or Macintosh developed by User Interface Software Group, Human-Computer Interaction Institute, Carnegie Mellon University.
http://www.faqs.org/faqs/garnet-faq/

Millstone Web UI library
A user interface library for development of Web applications. It provides a terminal independent component model that can be adapted to different terminal types and user interface themes. [Open source, LGPL]
http://millstone.org/