Is there a forum for general posts. Things like blog updates etc.?
Can you elaborate on what you mean by "general posts" and "Blog updates"? Do you mean information that applies across all Bentley products? The information on the communities.bentkey.com homepage (such as the top banner) is the main source of Bentley-wide communication on Bentley Communities. For other information, you would need to first navigate to the respective Community. For example the MicroStation Community within the Product Communities area would have updates related to MicroStation.
https://www.bentley.com/newsroom/ would also be a good place to go for general news and updates.
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.