I'm not familiar with Leopardi, but this work has challenged me to seek out his works, as well as to examine my own epistemic habits. A promising peek into the possibilities of hypertext in enhancing our understanding of fragmentary texts!
I did have some trouble identifying which quotes were from Leopardi, and which from Adorno. Are there more details included on your references page? I am unable to access it at the moment...
Thank you for sharing this project, and I hope to keep an eye on digitalzibaldone.net!