Occasionally I get a request to look through someone's raid log on World of Logs for warlock improvement. Sometimes it's for a guild applicant and sometimes it's for another tweeter. A thing I've thought about doing for a long time is a World of Logs 101 on warlocks -- both for warlock players and for non-warlock raid leaders.
I'm starting with the bare basics: how to tell warlocks apart on a World of Logs parse and exploring the DPS rankings. (It's actually not that difficult anymore!)