If you play the English Concertina or the Anglo Concertina, then you might be interested in two new networking sites that I launched just last weekend! 
Although there are Discussion & Blog facilities, these sites are more for players to use simply to network & stay in touch in an English or an Anglo Concertina friendly environment, depending on which site your on. 
They are also great places for posting photos of your Concertinas, in sessions, festival etc. plus sound files and videos of your music, to impress & entertain the other members.
You can check them out here:
&
[u]Anglo Concertina Players[/u]
Cheers
Dick