Now’s the time to subscribe to Netanya College’s Yerushalmi Database (מערכת מאגרי המידע של התלמוד הירושלמי), mentioned by Amit last week. Moshe Pinchuk, the site’s manager, just sent out an email informing subscribers that the database has been updated.
The site provides a list of Rishonim (compiled via the Bar-Ilan Responsa project) and academics who discuss a given segment of the Yerushalmi, obtainable through searching either by column number, Mishnah, quote, or topic. It’s free to subscribe and the site also includes a free, reader-only version of the Hebrew Language Academy’s edition of the Yerushalmi.
A similar site which also aids in the study of the Yerushalmi is Leib Moscovitz’s database of Yerushalmi parallels, which lists parallels from the Bible, Tannaitic Literature, Yerushalmi, and Bavli in separate PDFs for each tractate.