Voici un site qui donne plein de bonnes idées pour faire une bonne interface utilisateur :

Try a one column layout instead of multicolumns:

Try giving a gift instead of closing a sale right away:

Try merging similar functions instead of fragmenting the ui:

Try social proof instead of talking about yourself:

Try repeating your primary action instead of showing it just once:

Try distinct styles between clickable and selected items instead of blurring them:

Try recommending instead of showing equal choices:

Try undos instead of prompting for confirmation:

Try Telling who it’s for instead of targeting everyone:

Try being direct instead of indecisive:

Try more contrast instead of similarity:

Try showing where it’s made instead of being generic:

Try fewer form fields instead of asking for too many:

Try exposing options instead of hiding them:

Try suggesting continuity instead of false bottoms:

Try keeping focus instead of drowning with links:

Try showing state instead of being state agnostic:

Try benefit buttons instead of just task based ones:

Try direct manipulation instead of contextless menus:

Try exposing fields instead of creating extra pages:

Try transitions instead of showing changes instantly:

Try gradual engagement instead of a hasty sign up:

Try fewer borders instead of wasting attention:

Try selling benefits instead of features:

Try designing for zero data instead of just data heavy cases:

Try opt-out instead of opt-in:

Try consistency instead of making people relearn:

Try smart defaults instead of asking to do extra work:

Try conventions instead of reinventing the wheel:

Try loss aversion instead of emphasizing gains:

Try visual hierarchy instead of dullness:

Try grouping related items instead of disordering:

Try inline validation instead of delaying errors:

Try forgiving inputs instead of being strict with data:

Try urgency instead of timelessness:

Try scarcity instead of abundance:

Try recognition instead of recall:

Try bigger click areas instead of tiny ones: