Website Response Times An Article by Jakob Nielsen www.nngroup.com Users really care about speed in interaction design...A snappy user experience beats a glamorous one, for the simple reason that people engage more with a site when they can move freely and focus on the content instead of on their endless wait. 0.1 seconds gives the feeling of instantaneous response. This level of responsiveness is essential to support the feeling of direct manipulation. 1 second keeps the user's flow of thought seamless. 10 seconds keeps the user's attention. A 10-second delay will often make users leave a site immediately. uxperformanceinteraction
Of Note: Better Text Annotations for the Web An Article by Brandon Dorn www.viget.com Show image 0 Show image 1 Generally speaking (and ignoring questions of styling, API availability, etc.), an ideal Web annotation pattern follows these principles: Annotations appear in close visual proximity to the primary content. Their design neither distracts from nor hides the primary content. The preceding principles are followed regardless of screen width. The only pattern I’ve found that meets these criteria is FiveThirtyEight’s. ...As it turns out, FiveThirtyEight didn't invent this pattern. It likely originated in medieval illuminated manuscripts which contain “interleave notes” — comments written literally between the lines. readingwwwaccessibility