The Ahlul Bayt `Aalim Network was a mailing list consisting of scholars who answer questions about Islam.
www.al-islam.org/organizations/aalimnetwork
Here is a list of marja and their websites:
Khamene'i -
Sayyid Sistani -
Al-Haeri' -
Lankarni -
Tabrizi -
Shahroudi -
Yazdi -
Saan'e -
Shirazi -