Design Guidelines: Why doesn't every site/company have this?
stanford.edu
stanford.edu
Not only are guidelines like this common, but this isn't half as detailed as some of the stuff we get handed.
Working in a company of designers is kind of funny sometimes. They'll think of technological problems in those fuzzy, vague terms of non-techies, but once the conversation becomes about "branding", out comes a razor-sharp eye for detail.
I'm still waiting to see the new branding book for the company I work at. I thought the old branding sucked, but I was very pleased with the quality of the branding book, and I'm "just" a dev (a back-end one at that).
http://www.yale.edu/printer/identity/index.html
We also are working on a web style guide, designed by the same guy who wrote the Web Style Guide:
http://www.yale.edu/web/styleguide/index.html
Both come in handy for removing a lot of the little decisions when working on an affiliated design.
One sees this basic type of thing in press kits and even (er, kinda) "link to us" or "powered by" graphical widgets, but the focus on consistent color and typography are things I think could stand to get some more attention. This type of reference is especially helpful for non-designers who aren't immediately inclined to think about consistency and branding.
When I used to work at Ericsson, there was a huge manual with all the design guidelines that specified everything from the exact shade of blue for the Ericsson logo, the font, and to how far the 'three sausages' logo should be spaced from the word 'Ericsson' (for the record, turn the 'E' horizontally and place it between the 'n' and the logo, that's the correct spacing).
Even if you are using vendors to help out with your design, it's a great way to lower their time spent (and your bill) by more rapidly getting them up to speed.
But the reason not every one of them does is that it is extremely time consuming, takes a lot of thought, and you have to spend time enforcing the guidelines once they're created. If you're not committed to following them, it's a waste of time and money to define them.
Most start ups are worried about things other than logos and colors matching across multiple mediums (print, web, broadcast, etc.) because most web sites and web start ups only have one medium: the browser.
People who always ask why you should pay hundreds or thousands for a corporate identity should take a look of the amount of work behind those guidelines...
They even have a page where you can download branded powerpoint slides, logos, etc.
http://www.red-gate.com/careers/book_of_red_gate.htm -- Style guide is at the end.
Verdana has much less in common with Helvetica than Arial does. It's also rare to see a designer spec Arial before Helv.
http://identity.ufl.edu/identityPlatform.pdf
It even includes how logos on school trucks should appear, and letterhead margin requirements
lots of schools have a VIS (visual identity system)
I have to use it all the time.
But I agree, very useful for press/users/internal.
I am barely more than a hobbyist and I have a little one-page guide for my own reference, mostly to sample colors easily.
You can't measure everything with an A/B test.