Need help trouble-shooting something in Erlang and can't find the documentation for it?
Erlang Central's Erlang Cookbook has a fairly thorough listing of Erlang "recipes" to save you the trouble of figuring things out yourself. Most of the solutions are directed at OTP Erlang specifically, but you may find other answers listed as well.
The Cookbook was originally compiled to provide solutions to common Erlang programming problems, but, naturally, it has also become a project dedicated to furthering Erlang adoption.
It's a collaborative document, so if you have something useful to add, you can submit articles of your own here. If you contribute to the Cookbook, though, you must agree to a copyright statement. This way, should the Cookbook one day get published, the publishers will have no qualms about including your work.