OpenStreetMap has several resources for learning about the project, asking and answering questions, and collaboratively discussing and documenting mapping topics.
Community maintained guide for beginners.
A shared place for to seek help and have conversations about OpenStreetMap.
Ask a question or discuss interesting matters on a wide range of topical or regional mailing lists.
Interactive chat in many different languages and on many topics.
Help for companies and organisations switching to OpenStreetMap based maps and other services.
With an organization making plans for OpenStreetMap? Find what you need to know in the Welcome Mat.
Browse the wiki for in-depth OpenStreetMap documentation.