Each fundraiser page has a corresponding internal page in your dashboard.
On this page, you can see contact info, details on self donations and various inputs the fundraiser has made when creating/editing the fundraiser page.
In addition, you can make internal notes. This allows multiple administrators to collaborate on managing fundraisers, but also for a single admin to have a place to make small notes about the fundraisers for later. Each note is tagged with the admin and a time stamp. Notes can be deleted by admins.
This is also where you find the button to create offline donations, and the link for each fundraising page's mobile donation form.