→Workshop: update dead Sherline link
* http://pcbshopper.com/ compare quotes from 23 PCB manufacturers
== Free Stuff ==
* [http://www.otisoakley.com/ Otis-Oakley] — Sells scrap steel, as well as some new steel. Location: California Ave and Fulton St, Chicago
* [https://www.metalsdepot.com/index.phtml MetalsDepot] — A source for metals, all kinds and shapes, no minimums. Location: Winchester, KY
=== Paper ===
* [http://www.horiganufp.com/ Horrigan Urban Forest Products] — Skokie — urban felled hardwoods
* [http://ghwoodworking-com.web4.tempwebsite.net/?page_id=24 GH Woodworking] — Wauconda sawyer — reclaimed urban hardwood.
http://rebuildingexchange.org/ retail-warehouse Rebuilding Exchange] — Chicago (10 minutes drive South on Elston) — reclaimed lumber and fixtures
=== Plastic ===
* [http://www.cooperhandtools.com/brands/nicholson_files/Nicholson%20Guide%20To%20Filing%202006.pdf Nicholson File Information] Nicholson file guide to files and filing.
* [http://www.cooperhandtools.com/brands/nicholson_files/file_terminology.pdf Nicholson File Terminology] Nicholson File Terminology Guide
http://www.sherline.com/ resource.htm Sherline's Metalworking Resources and Hotlinks List] Reference material for miniature machining.
* [http://www.shopfloortalk.com/forums/index.php Shop Floor Talk Forum] A forum for all things metal and metal working.
* [http://bbs.homeshopmachinist.net/index.php The Home Shop Machinist & Machinist's Workshop BBS] A forum for all things metal and metal working.