http://www.eit.com/web/folk/folkhome.html
This is a popular site for accessing folk music on the web run by Jay Glicksman of EIT (Enterprise Integration Technologies), an R&D and consulting company specializing in information technology and online commerce. It includes dozens of links for concert schedules, commercial resources, artists, albums, etc. The site is often busy, but with patience, it can be accessed. In a pinch, access through 'www.eit.com' as an http address, then search on 'folk music.'