Azure
Azure is the center of gravity for this site.
What I cover here
The areas I have spent the most time on: landing zones and management group design, network architecture (firewalls, DNS, private connectivity), Resource Graph and KQL queries, and policy as code. These are not surveys. Each page reflects a decision I have had to make and defend on a real engagement.
This is not a beginner's guide. Microsoft's own documentation covers what the services are. What is here is the layer above that: what works in enterprise environments, where the edges are, and why I choose one option over another.