Hi,
To complement the information of GUS, forums is for Questions and Discussions and you have three generic:
social.microsoft.com/.../threads - Doubts generic - customizations, configurations
social.microsoft.com/.../threads - Doubts about plugin\workflow
social.microsoft.com/.../threads - Doubts about the deploy CRM System
If you go to the next url you will find more forums but with a specific language.
social.microsoft.com/.../categories
In my language (Portuguese) i have another resource in technet:
social.technet.microsoft.com/.../categories
So we have a big community with different purposes.