Creating new posts menu
There are two ways registered users can post to EG:
(1) under the "Edinburgh" navigation menu (at top left of every page) choose the flyout menu "Create Content" and then choose your otpion (e.g. Forum Topic).
(2) go to the page where you want to post (e.g. Forum) and click the link to create content
If you are registered you can post comments to some posts as well. The link to post a comment is usually at the end of the item.