Directories of counsellors and psychotherapists:

http://www.ukcp.org.uk

The United Kingdom Council of Psychotherapists (general information and a directory of psychotherapists).

http://www.bacp.co.uk/

The British Association for Counselling and Psychotherapy (general information and a directory of counsellors and therapists).

http://www.counselling-directory.org.uk

UK site with information about mental health and counselling and a register of counsellors.

http://www.sussex-counselling.co.uk

Directory of local counsellors and therapists.

General information about psychotherapy:

http://www.metanoia.ac.uk

Training institute for counselling and psychotherapy (where I trained as a Psychotherapist).

http://www.aboutpsychotherapy.com/

An American site with some useful information about different types of therapy and what to look for in a therapist.