Lots of good identity design here.
1976 Identity guide from NASA.
Another great identity from Andreas Neophytou. Check out all the work on the site, you will not be disappointed.
Great development and application of an identity.
(via Outside Photographic | Identity Designed)
Great redesign of the IFC logo. But the really interesting stuff is the information in the case study, and how the logo is implemented across the system. Take notes kids, this is how you do an identity.
This is a great example of a modular identity.COOEE | Graphic Design | Art Direction
Lots of mass transit logos from around the world.
Design a logo for the Museum of Contemporary Art Detroit. Details in the link. Better hurry, limited time offer!
Great free resource for common symbols