Here is a quick summary of online resources for users of Logic Apps.
MSDN forum: Azure Logic Apps https://social.msdn.microsoft.com/Forums/en-US/home?forum=azurelogicapps
Blog: Azure Logic Apps https://blogs.msdn.microsoft.com/logicapps/
User-voice feedback for Logic Apps and Connectors: https://feedback.azure.com/forums/287593-logic-apps
MSDN docs: https://docs.microsoft.com/en-us/azure/logic-apps/ - includes a link to PowerShell, REST API docs, also the workflow template definition language is explained, etc.
Azure Advisor Yammer: Accessible only to members. There is a Logic Apps and BizTalk Server forum, you do need either an invitation or approval using the registration form https://aka.ms/joinadvisors