The average user will spend 30.2 hours on cell phones and 75 hours using the wireless Internet annually. Low Income More and more low-income households are surfing the net. Use frames only when other design solutions are not adequate. Frames may take longer to design, develop, and maintain. Splitting a page into frames can be confusing for users since frames can break the fundamental user model.
Frames make a Web site difficult to use, and can prevent users from emailing a URL to others.
A Designer's Guide, North Andover, MA User Interface Engineering. Simply let us know. U-Group is a usability announcement listserv managed by NCI's Communication Technologies Branch.