A number of charities and services hold online chat forums to put you in touch with people that may be able to help or are going through the same thing.
Includes a helpline for men. Phone: 0808 802 58 58 Available 5pm—Midnight.
A place where people can talk about mental health problems with others and trained advisors. Phone: 0300 304 7000
A site dedicated to helping people with obsessive compulsive disorder
A site dedicated to helping people with panic attacks