Go there: http://www.societyofauthors.org

An essential for all published authors:

“The Society of Authors has been serving the interests of professional writers for more than a century. Today it has more than 8,500 members writing in all areas of the profession. Whatever your specialisation, from novelists to doctors, textbook writers to ghost writers, broadcasters to academics, illustrators to translators, you are eligible as soon as you have been offered a contract.

“The staff are ready to help members with any query, however trivial or obscure, relating to the business of writing. Our services include the confidential, individual vetting of contracts, and help with professional disputes. In addition, the Society holds meetings and seminars, publishes a quarterly journal, The Author, and maintains a database of members’ specialisations.”