Jakob Nielsen has ten rules to making a website. Here they are:

1."Visibility of system status"- The system should always keep users informed about
what is going on, through appropriate feedback with reasonable time.

2."Match between the system and real world"- Follow real world conventions and make information appear in a natural logical order.

3."User control and freedom"-Users often make a mistake and will need a "emergency exit" with having to go through undo or redo.

4."Consistency and standards"-Users should not have to wonder whether different words ,situations or actions mean the same thing. Follow platform conventions.

5."Error prevention"-Make a careful design that prevents something bad happening in the first place. Present them with a confirmation option before they commit to the action.

6."Recognition rather than recall"- Instructions for use of the system should be easy at all times. Miminize the users memory load by making objects,actions and options visible.

7."Flexibility and efficiency of use"-Allow users to taylor frequent actions.

8."Aesthetic and minimalist design"- Dialogues must not contain information that is rarely needed.

9."Help users recognize, diagnose,  and recover from errors"-Error messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.

10."Help and documentation"-It may be necessary to provide help and documentation. Any such information should be easy to search,list concrete steps to be carried out,but not large.