| ASTM.org - American Society for Testing and Materials |
| Astromech.net -The most comprehensive website for DIY building of R2-D2 droids. |
| DARPA.mil - a U.S. Department of Defense Agency used to facilitate technological research projects. |
| EpicX.info - a technology information sharing website |
| Facebook.com - an online social networking website |
| Indiegogo.com - a global crowdfunding platform |
| Instructables.com - a Do-It-Yourself project sharing website |
| ISO.org - The International Organization for Standardization |
| Kickstarter.com - a global crowdfunding platform focused on creativity |
| Meetup.com - an online social networking website that facilitates face to face meetings around the world |
| NIST.gov - the official website of the National Institute of Standards and Technology |
| Thingiverse.com - a 3D printable projects sharinge website from MakerBot |
| USPTO.gov - United States Patent and Trademark Office |
