If you have questions about specific applications, check the application's wiki page. Many application wiki pages provide a link to a dedicated help thread on the monome forum to centralize and focus discussion on a specific application.
If you're having trouble connecting your device to applications, work through this guide to confirm your setup is functioning correctly.
If you need interactive help troubleshooting, the forum is usually your best bet to get your problem resolved quickly.
Often common issues can be resolved by using the search function.
Getting good help starts with providing good information. If you have a technical question, try to provide as much relevant information as possible, such as: your computer system, OS version, what applications are involved, what type and edition of monome you're using, errors in the max window, and list the troubleshooting you've already tried.
monome can be contacted directly via email at email@example.com
Interactive help is available on the monome irc channel at webchat.freenode.net