For example, the standard logo for a company could always be at http://website.com/images/logo.png Perhaps there could be multiple sizes of logos that are standard as well.

You could also have contact information always at /contact or /contactus

I'm not so concerned about the actual urls as I am the desire to start a convention like this that we can all use moving forward. How many times have we pasted a link to our logo or uploaded our logo? Or a company asked for it for an article or testimonial, etc...

If we could just specify a base url to grab the information, from any service we choose pretty much, then life would be a lot easier for us all.