Every page of your organization can be headed by your organization's banner. Just upload a banner at an address like the following
(the banner is therefore expected to be in jpeg format) and the system will automatically display it on the top of each of your pages!
We are also planning to include support for html banners, which therefore might include both images, and text that can be selected and accessed by search engines. They will be expected to be found at a location like the following
(where "Banner" is a standard wiki page containing some html)