To update the information on your landing page, navigate to Manage Organization in the left hand menu and click Edit Landing Page.
You will now see your Landing Page in "Edit Mode."
To edit the various pieces of your Landing Page, click on the blue edit icons to open the edit screen associated with each section.
Remember to click the green Save button when you are finished editing each section!
To turn off "Edit Mode," click the blue Turn Edit Mode Off button at the top of the screen. This will show you what your Landing Page looks like to the public.