Borders Shetland Fiddlers
If you are interested in Shetland fiddle music, Shetland generally or music in the Scottish Borders, here are some good links:
Riddell Fiddles -Traditional fiddle learning group for young and old based in Midlem, nearSelkirk
Borders Fiddle Group -
Fiddle learning group based in Jedburgh
Scots Fiddle Festival - Fiddle Festival in Edinburgh held in November
Shetland Music - Information about Shetland music 
Shetland Folk Festival
Shetland Fiddle & Accordion Festival
Small Strings - Mark Mawby - maker of fiddles and other small instruments. Mark has recently moved to Wooler in North Northumberland. Check out his website.
Fiddlers' Bid - Top Shetland fiddle band
Fullsceilidh Spelemannslag - Shetland's top fun fiddle band
Border Strathspey & Reel Society