Here is a really great summary called "Scientific Web Design: 23 Actionable Lessons from Eye-Tracking Studies" that collects information from several different studies, and packages it up into something pretty, dare I say it, usable.
It is really worth it to read the whole thing, and it is pretty short. Here are a few highlights that got my attention:
- Text attracts attention before graphics
- Fancy formatting and fonts are ignored
- Type size influences viewing behavior
- One-column formats perform better in eye-fixation than multi-column formats
- Lists hold reader attention longer
- Navigation tools work better when placed at the top of the page
There is so much more to UI than drawing a pretty picture. Applying some science to the art of user interface design can result in something truly beautiful.