layers
YouTube - Photoshop tutorial on using layers for effect ...
>30 days ago by Icebear, 1 User, more info saveDeziner Folio» Blog Archive » Ultimate Web 2.0 Layer St ... 
>30 days ago by nachoman, 6 Users, more info saveAdobe Photoshop: Good Quality and Respect for its users
>30 days ago by desinformado, 1 User, more info save
YouTube - How to Use Layers Part 1 - AutoCADVids.com
Layers in AutoCAD allow you to set different colours, linetypes and lineweights for different objects you may want to draw. This video is part 1 of a tutorial on how to use them in AutoCAD
>30 days ago by autocadvids, 1 User, more info save
YouTube - How to Use Layers Part 2 - AutoCADVids.com
This video is part 2 of a tutorial on how to use them in AutoCAD
>30 days ago by autocadvids, 1 User, more info save