In this video, experienced OpenSim users share their experiences and tips for getting started with OpenSim. For more information about OpenSim, visit http://opensim.stanford.edu/
Other useful resources include:
OpenSim tutorials: https://simtk-confluence.stanford.edu/display/OpenSim/Examples+and+Tutorials
OpenSim discussion forum to ask questions and get answers from the OpenSim developers and community: https://simtk.org/plugins/phpBB/indexPhpbb.php?group_id=91&pluginname=phpBB
OpenSim workshops to work in-person on your project with the OpenSim developers: http://opensim.stanford.edu/support/workshops.html
OpenSim guide to joining the community: http://opensim.stanford.edu/join/index.html