American Psychiatric Association (developer of DSM):
http://www.dsm5.org

British Psychological Society response to DSM-5 consultation:
http://apps.bps.org.uk/_publicationfiles/consultation-responses/DSM-5%202012%20-%20BPS%20response.pdf

Open letter from one of the Divisions of the America Psychological Association
http://www.ipetitions.com/petition/dsm5/

Prominent psychiatrist, Allen Frances, critique:
http://www.huffingtonpost.com/allen-frances/dsm-5-petition_b_1610569.html