Snapshot of the IIDB web site entry page. The entry page includes links to user guides ('How to Use IIDB' and 'IIDB Tutorial'), and links to allow the searching and visualization of IIDB content in a variety of ways, as described in the main text. We also provide links to 3rd party data and software used by IIDB. Clicking the '?' symbol located to the left of each menu item pops open a help page explaining how to use that menu item (Inset).