On the Web, all advantages are temporary, and you must keep innovating to stay ahead

The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.

Usability rules the web. Simply stated, if the customer can't find a product, then he or she will not buy it.

The more users' expectations prove right, the more they will feel in control of the system and the more they will like it.

Popularity is the product of two factors: (a) how compelling material you offer, and (b) how easy it is to access it. Host free pirated movies and users will flock to the site, even if it's difficult to use.

Good information architecture makes users less alienated and suppressed by technology. It simultaneously increases human satisfaction and your company's profits. Very few jobs allow you to do both at the same time, so enjoy.

Progressive disclosure defers advanced or rarely used features to a secondary screen, making applications easier to learn and less error-prone.