Logo Galleries*
LogoPond
Cool Homepages Logo Gallery
Vector Logo Database

Sample Logo Usage Guides
iPass (pdf) - note the section on page 6 dealing with “bling”
Napster (pdf) - another well designed document
The BIG PAGE of Branding & Corporate Identity Resources
Corporate Identity Manuals & Guides

Rebranding Processes
Carsonified
Brand New

Rants
Don’t TWEAK My Logo

Well said:

Our identity is more than the Mosaic logo. It is made up of colors, typography, images and more, so that when joined together, reflect the personality of Mosaic and its commitment to its customers, employees, investors and the community.

Consistent use and application of these elements is important. We have gathered everything you need to successfully use our identity and put it at your fingertips.

Tips*
8 Common Logo Design Mistakes (and how to fix them)
What Makes a Great Logo
What makes a great logo?

* grain of salt, people. Grain of salt.