Characteristics
When designing the layout of your site try and take into account the characteristics of your audience. Are they looking for trends or are they just looking for information offered with out all the icing on the cake?
Age Level
Try and determine the age level of your visitors. A follower of gardening may linger on a site for a time, but a professional may turn it’s nose at the very same site. In contrast, a child working on a school project may gather a small amount of information from an astronomy site filled with abstracts and mathematical information while a well educated university graduate may spend hours daily viewing all of the information the site has to offer.
Emotion
If a very irritated customer comes to your site and searches for a solution… you will want to make sure you offer what the end user is looking for right up front and personal. This will cause the end user to find the solution to his or her problems and in turn envelope trust in you and your answers.