@SteveA did an article about server logging a few years ago which was very helpful.
... and in the training events at Inspire this year there was a session on how to find and interpret server logs.
it would be very useful for large server environments to move away from discrete log files as much as possible, and instead move towards a world where the logs are stored in a data format, and one logging infra is used for all so that an admin team can see these all in one place.
Granted - the initial boot-up of a server, where it needs to connect to the logging DB is going to be a challenge - but after this initial primary boot sequence it would be great if all server logs and logging events were stored in a database of some kind so that we can analyze and collect events. That way, server admins can have a great UI experience; as well as a great analytical experience without having to regex through multiple different .LOG files.