I wrote this quick ‘n’ dirty article for the Council on Governmental Ethics Laws a while back, but the points still hold for anyone trying to deliver better webinars.

tldr:

make it easy for your participants to get there;
use slides as visual anchors, not a script;
don’t use a script!
keep it interesting

Does that sound too glib? Then follow this equation: tldr/tld=r.

In other words, read the article.