The easiest way to add a picture to your post is to use the Insert Image button:
You’ll be asked to enter the URL for the image. There are plenty of free services (we recommend Flickr or Photobucket ) that will host your image for you - just copy the link across. Be sure to preview your image to make sure it looks right and it’s not too big as over-sized images can be difficult to view within the thread.
There is also now an option to embed videos within posts. You can embed videos from most popular video hosting sites e.g YouTube, Vimeo etc.