Every page should have a link back to the home page, as well as an indication of where the page fits within the structure of your information space. Beware of blink. Never include page elements that move incessantly - scrolling text, running animation, messages and icons that blink. Moving images don't help visitors find what they're looking for - they attack the senses. Break with frames.
Frames violate the fundamental user model of the Web.
With frames, you can't bookmark the current page and return to it, URLs stop working, and printing out becomes difficult. Shrink download times. Because the Net is adding users faster than it is infrastructure, bandwidth is getting worse instead of better. Ten seconds is the maximum time that users will wait before losing interest.