It can be difficult or impossible to print a page in a frameset. Frames make a page incomprehensible to some screen-readers for the blind. Here are a few sites that exemplify good information design to one degree or another. Not all these sites are perfect, but each has many of the qualities that make a good Website. The New York Times presents a ton of information clearly and logically.
Text is easy to read, and column layouts on sub-pages are comfortable widths for reading.
The clear and simple site map makes it easy to find what you want. This is another good news site, busy but with categories of information clearly delineated. Federal Express Compact site with all the services you need, and even some company news, on the home page. Clean, colorful, with strong identity graphics. A bit crowded, but you can easily find what you need, and the functions are extremely customer-friendly.