How easy it is for customers to perform the desired actions.
The structure and formatting of text and hyperlink based calls to action can drastically increase your website usability, and thus conversion rates.
- Don’t Make Me Think – Steve Krug’s book about designing an easy to use website.
- The Big Red Fez – Seth Godin’s short book on common website usability errors.
- useit – Jakob Nielson’s newsletter on usability and web design.
- A User Interface Usability Checklist for Ecommerce Websites – Kim Krause’s website usability checklist.