http://www.theatredatabase.com/18th_century/italian_drama_001.html
This site gives a basic overview of Italian Drama during the eighteenth century. The site primarily focuses on the history of Italian theatre and how it changed over the years. It talks about commedia dell' arte, improvised comedy, and discusses Italian playwrights such as Carlo Goldini. This website has a lot of useful information about the history of Italian theatre during the eighteenth century and would be a good source for information.