Here are some links that may help you?
http://www.instructables.com/
http://makezine.com/
http://www.tested.com/
Materials:
Grainger:
https://www.grainger.com/
Rockler: Wood Stock
https://www.rockler.com/
Movie Props and Costumes:
How to's for props and costumes:
http://www.therpf.com/
Odin Makes:
https://www.youtube.com/channel/UCQ0rE-bxmi6Vl09ARe7qROw
Foam Building:
xieng prod:
https://www.youtube.com/channel/UC3818VG9PBTLiUFQ0nDW0tw
Punished Props:
https://www.youtube.com/channel/UC27YZdcPTZM24PgjztxanEQ
Evil Ted:
https://www.youtube.com/channel/UCLTxoOYUpGKDSexgjTG1D1A
3D Printing:
RCLifeOn:
https://www.youtube.com/channel/UC873OURVczg_utAk8dXx_Uw
Make Anything:
https://www.youtube.com/channel/UCVc6AHfGw9b2zOE_ZGfmsnw
Other Makers:
I Like to Make Stuff:
https://www.youtube.com/channel/UC6x7GwJxuoABSosgVXDYtTw
Modern Builds:
https://www.youtube.com/channel/UCIxAaCJ84uefATKmazDyIjw
The King of Random:
https://www.youtube.com/channel/UC1zZE_kJ8rQHgLTVfobLi_g
