Major squeezebox event in bucolic western MA, USA - participant lead workshops, concert, dance, lots of networking, jamming, stuff on display/sales/etc. Accommodations range from nice manor rooms (totally booked!) to cabins (still some available) to camping (with a facilities building).
This is a comfortable and low-key event, great for beginners to pro's. While things are definitely squeezebox oriented, other instruments are welcome - in fact, one need not even play a box to have a good time there (though non-players will probably be bored silly).
Check out Northeast Squeeze-In for more information including reviews of past events.