The following mailing lists/bulletin boards are good resources for asking questions of other researchers.  The USGenWeb site has great information on how to write a query.

• Rootsweb TNSULLIV-L mailing list – you can sign up by email, browse the website, or even subscribe to RSS feeds. Instructions for signing up are on the page.
• Ancestry/RootsWeb Sullivan County Forum – read and post queries on Sullivan County people and history 
• TNGenWeb on Facebook – join our Facebook group!