Live graphic recording is great, but so are visuals created before or after the fact. Like this one, which was created earlier this year - 2 years after the original presentation! A fresh visual can breathe new life into an old topic. Not that this topic is old (far from it!) but you get the idea. Visuals simply bring things to life, no matter when they're created.
One Squiggly Line Blog
Hand-drawn pictures can make things clear, simple, and fun in blogs, too!