HEATKEYS

Shop Data Systems (SDS) has been servicing the metal fabrication industry for more than 30 years. We are leading the way with technological innovations that have helped thousands of shops around the world to become more efficient, competitive and pro...

YouTube is a place to discover, watch, upload and share videos.

Electrical, HVAC, and plumbing software for engineering design of buildings in AutoCAD

Learn about the advantages of building a business relationship with Autodesk by participating in one of our technology licensing programs or joining the Autodesk Developer Network (ADN).

Autodesk User Group International (AUGI) discussion forums.

CADTutor provides free video tutorials, articles, downloads and a busy community forum for users of AutoCAD and associated software.

Ultimate Technology Directories by TenLinks find and organize sites in all subjects of interest to Technology professionals.

Elite Software - 30 hvac software programs for all aspects of hvac, plumbing and electrical System Design

EastCoast CAD/CAM offers a full suite of 100% AutoCAD compatible MEP sheet metal, piping and plumbing design to fabrication tools, training and support.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Lennox Commercial is a leading provider of high-efficiency packaged rooftop units, split systems, HVAC controls, furnaces and indoor air quality products for the light commercial industry. Committed to helping our customers through advanced products ...