The more you use Meteor, the more familiar the major packages will become. However, you may also want to start branching out and doing more advanced things with some of the lesser-known packages. You may also come up with an idea for a new application of Meteor. In any case, you will eventually run into a situation where you need more information than what is contained in the documentation. Here are some quick tips on where to go when you need your questions answered.
There are three major sources for getting your questions answered: