The community support forums is currently unavailable due to the server experiencing hardware related problems, and will be back online tomorrow.
The maintenance of the server hosting the community support forums also affects the add-ons site where developers will have to wait until the server is back online to be able to upload their add-ons again.
This blogging entry will be updated with further information during the maintenance period.
Update:
The maintenance of the server has completed successfully and is back online in full operation.