If you need help understanding how the Tezos protocol works or if you have technical questions about the software, here are a few resources to find answers.
This documentation! Make sure to go through this technical documentation before asking elsewhere, there is also a search box on the top left corner.
Tezos Stack Exchange is live (still in beta). If you don’t find the answers you are looking for, feel free to ask questions!
There is a sub-reddit at https://www.reddit.com/r/tezos/ that is the main meeting point for the Tezos community, for technical, economical and just random questions. They also have a nicely curated list of resources.
There is a #tezos IRC channel on freenode that is reserved for technical discussions and is always very active.
There is a matrix channel Tezos that you can join here.