HYUNDAI’s logo is a decent one and so is the logo guideline. Old ( 2002 ) , but interesting, in its 93 pages ( 7 MB ) you can read about:
Symbol
Mark
Logotype
Signature
Color
Typefaces
Stationery
Signage
Vehicles
Promotion Items
Uniforms
It’s interesting the hierarchy between Hyundai and its dealers. Also the various vertical and the horizontal variations of positioning the logotype and the mark. [...]

This General Electric Guideline is designed for print advertising and covers :
1.0 Brand Architecture
2.0 Monogram
3.0 Tagline
4.0 Color Palette
5.0 Typography
6.0 Imagery
7.0 Tone of Voice
8.0 Gray Bar
9.0 Transition Designs
10.0 Limited Space
11.0 Classifieds/Yellow Pages
12.0 Outdoor
13.0 Grids
There are many GE guidelines out there, since the company has a lot of activities, but I believe this is one of the [...]

Beeline / Билайн is named “the best Russian brand 2008″.  It’s a mobile operator with a nice brand design. The logo guideline here is in Russian, but I guess, you’ll get the idea even if you don’t speak the language. Click on the picture to download the PDF. File is 29 pages, 1 MB only. [...]

90 pages of great graphic design!
A perfect brand document, we should learn from.

click on the image to browse the PDF in flash or click here to download this skype logo and brand guidelines from the official site.

There are different opinions about the new “Animal Planet” TV channel logo. I find it nice and unique. This brand guideline is from 2008 – short, easy to digest and with a few more tricks that will help you make your own logo production better. Click the picture to download.
24 pages / 3.39 MB