Here are various links which I highly recommend:

The excellent pianist Irina Botan, my duo partner:
www.irinabotan.com/

The Yehudi Menuhin School, where I am employed:
www.yehudimenuhinschool.co.uk/

The Orchestra of the Age of Enlightenment, of which I am a great fan. I was accepted on their "Ann and Peter Law" scheme for young players last year. Check out their concert diary!
www.oae.co.uk/