jams, sessions, open mics
The Flyin Fiddler Wayne Cantwell maintains a list of jam sessions in the Oklahoma City region.
Author Stas Bekman maintains several of the Internet FAQs on his site, including several about musical styles and genres.
The OFGC sponsors area jams and lists them on their site, along with a host of other area information.
This portal site provides information on folk and roots music in the state of Michigan.
VABluegrass.com is a web page devoted to being a reference guide for those interested in Bluegrass/Folk/Irish or other acoustic music in Virginia. The goal of this site is to make it easier for those people who love acoustic music to learn, play and share that music with others. (from their about page)
Comprehensive local and statewide folk and traditional music happenings, links to other trad music stuff out there on the web. (from their home page)
The GCBMA was founded in Pace, Florida, in 1993 to bring more bluegrass music to northwest Florida and southern Alabama. The association sponsors music festivals and concerts featuring local, regional, and national bluegrass performers. We also contribute to a music scholarship at Pensacola Junior College. (from their web site)
The oldest Bluegrass tab site on the net, "Banjo Tablatures and Bluegrass Information" at bluegrassbanjo.org has a number of useful pages for bluegrass pickers, including a lengthy list of recurring jam sessions from around the United States, which is where this link takes you to. Pay Phil a visit and thank him for keeping up with his site for over twelve years.
David Snyder maintains a very good list of Bluegrass shows, festivals and jams in the northern/upstate part of South Carolina.
A UK site that is our long lost cousin, probably separated from the family at birth and adopted. It is the only other site like folkjam that we've found.

