With Juicebox-Pro, you would be able to create as many individual galleries as you like. However, if you would like to link them all together, you would need to do so manually following the instructions and examples in the Embedding Multiple Galleries support section. There are several online demo pages which you could adapt to suit your own needs. The examples use text links but you could replace them with image links instead. (Knowledge of HTML would be required.)
If you are looking for an automated solution to creating and listing multiple galleries, then you might be interested in another one of our products - Showkase.
Showkase is a PHP web application which allows you to create complete portfolio web sites (integrating multiple galleries) online.
Showkase has full support for Juicebox-Pro (and SimpleViewer-Pro) galleries and the galleries can be created within the application itself in a web browser interface. Alternatively, you can import galleries created by the Lightroom plugin via Showkase's 'Site -> Import' functionality. Once a gallery has been imported into Showkase, it becomes a genuine Showkase page (just as if the gallery had been created in Showkase itself) and you can edit the gallery within Showkase in the future if you need to.
You can create Gallery Index pages and have as many galleries listed on each Gallery Index page as you wish.
Each gallery is represented by a thumbnail image with the gallery title displayed below and the gallery is opened when the user clicks on the image.
Demo sites can be found here and a sample Gallery Index page can be found here.
Another Gallery Index page (using a different theme) can be found here.
Showkase can also create non-gallery pages (About, Basic and Contact pages) where you can add information about yourself (or any other content you like).
All of this is done automatically within the Showkase interface without the need for any manual coding at all.
Showkase can be purchased as Showkase-Standard (which comes with Juicebox-Lite and SimpleViewer-Standard, the free versions) or Showkase-Pro (which comes with Juicebox-Pro and SimpleViewer-Pro).
(The only difference between Showkase-Standard and Showkase-Pro is the bundled viewers.)
More information on the differences between Juicebox and Showkase can be found in this forum thread.