Call-to-action buttons are the buttons that web designers want visitors to click when interacting with their site (Signup, Purchase, Download, etc.).
Tips on how to design these abound on the Internet, but David Hamill’s overview on how to design good call-to-action buttons and the difference they can make is one of the best I’ve seen recently.
The note on how subtle changes to Laura Ashley’s ‘shopping basket’ made clickthroughs increase by 11% reminded me of an article (via Kottke) on how Jared Spool changed the text of a submit button for a major ecommerce site, making them an additional $300 million in one year.
via Good Usability