There's great landing pages everywhere nowadays. The better ones have very clear value proposition and examples of how to use the product. A few examples:
After I'd done this exercise, I realised that all our marketing content needs reworking. So what started out as a landing page redesign has transformed into a giant playbook on how do we convert clients needing XYZ job done?, incorporating everything from cold sales emails to online demos.
Great read. And your landing pages look sublime.