My company currently does a lot of it’s debug logging via email… This means that every time an unhandled exception occurs in production, qa, uat, or integration, we get an email. Thank goodness for custom email rules and single instance storage in Exchange. Oh wait.
I have been a proponent of Logstash and the ELK stack for quite a while now. It is a wonderfully flexible framework for centralizing, enriching, and viewing log data.