Engineering and Physics: A Research Guide

Free access to research and development (R&D) results and scientific and technical information from scientific organizations across 13 federal agencies. Search over 60 databases and over 2,200 scientific websites and get access to 200 million pages of authoritative federal science information including research and development results.

Search for federally funded bibliographic science and technology research information from the U.S. Department of Commerce.

Open access to 1,305,534 e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics. The articles in this database are pre-prints (the version before the peer-review process).

Questions and answers on a wide range of topics in computer programming.

Collaborative site with MATLAB and Simulink questions and answers.

An international community of advocates and innovators working to solve global development problems. Create a login for the Solutions Library to see projects under way.

An open innovation and crowdsourcing company with unsolved problems and unmet needs framed as Challenges.

A global crowdfunding platform focused on creativity.

Profiles startups, reviews new Internet products, and highlights breaking tech news.

Electronic component distributor.

Mechanical, electrical, plumbing, and utility hardware.

Developed by Meriam Library at California State University, Chico

This guide, from Johns Hopkins, can be applied equally to Internet and non-Internet resources.

UC Berkeley provides a great evaluative framework in a graphically-pleasing chart.

IANA (Internet Assigned Numbers Authority) list of generic top-level domain name endings (like .com, .gov).