Other Websites I recommend:

Guerillasound - a rising, innovative, contemporary jazz trio.

The Shout – sixteen unique voices, one unique choir.

Marlborough Jazz Festival - one of the most popular and successful annual National Jazz Festivals.

Voicelab - free opportunities to sing with choral groups ranging from 20-1,000 in events at London’s South Bank Centre.  Repetoire ranges from Jazz to Flamenco to Beethoven to specially-commissioned works by leading contemporary composers.

Geoff Castle - leading West-London-based jazz pianist.  Also composer, sound recordist and producer with own recording facilities.

Johnny Charles Trio – piano, sax/flute, bass combo.  Guest vocalist – Tamsin Collison.

Nicholas Powell - first-class professional vocal coach.  Based in Staffs, but teaches 2-3 days a week in Highbury, North London