Useful links:

Manchester
42nd Street - counselling and LGBT group for young people (14-25)
Lesbian and Gay Foundation - services including counselling with trans counsellors

UK
FTM Network - For female-to-male transgender and transsexual people
Mermaids - For Transgendered Children, their families and carers
Queer Youth - The UK Alliance of LGBT Young People

Further afield
FTM Guide - comprehensive FTM Resource Guide
Remembering Our Dead - Information about the International Transgender Day of Remembrance
Trans FM - Transgender internet radio station
Transster - FTM Surgery Snapshots