Top 3 Things in Web Design

If you had to summarize what the top 3 things are important when designing websites or online tools, what would they be?

Podcasting in the classroom

How could you use podcasting in your classroom? Give some examples.  Why would podcasting increase student learning and understanding? What students would benefit?

Web 2.0 and Web 3.0

What areas do you think you are already using Web 2.0 technologies? Web 3.0 technologies? Give an example of each and indicate how often you use them, whether they are professional tools or personal tools.