Applets are as susceptible to bad file path names as graphics and links. Some applets and scripts aren't compatible with older browsers and may in fact, lock them up. When your page loads up, the first thing a visitor sees should not be someone's advertisement or icon. Animation can be good when used in moderation. When I review a web site, my screen should not appear to be crawling with all kinds of moving gizmos, furry critters, and shooting stars.
Frames can enhance a site or they can complicate it.
Your guest book. If your content is limited to this sort of thing, please reconsider your nomination.