I have been browsing the web and found new shiurim on Yerushalmi that can be downloaded in MP3 format or listened to directly online from the kolhaloshon.com web site.
1) Rav Ephraim Goldstein – Shiur in Talmud Yerushalmi (English)
2) Rav Mordechai Rudman – Yerushalmi (English)
3) Rav Bunim Schreiber – Daf Shiur in Yerushalmi (Hebrew)
4) Rav Chaim Kanievsky – Daf Yerushalmy Shiur (Hebrew)
5) Yerushalmi along with Daf Yomi Bavli (Hebrew)
I got permission from Kol Halashon to copy the shiurim and post them on YerushalmiOnline.org web site. This will take some time, especially the ones that are in the process of being recorded.
Two other online resources for Yerushalmi SHiurim
Rabbi Ruinsky fast and content Rich
http://www.ohrreuven.com/audio_library.php
also Video shiur in Hebrew from Meras Hamechpelah in Yerushalmi they have Archives also:
http://www.yerushalmiyomi.org/
PUK CHAZI
Here is the Archive page for the Hebrew Yerushalmi Shiurim:
http://www.yerushalmiyomi.org/page.asp?id=30
Are there any Shiurim on Yerushalmi in Yiddish ?
not that I know of.