The following competition details have been forwarded to us by Jan McGeachie, who ran Online Scribblers a number of years ago. Hope these may be of interest and bring some success to those who enter.
http://dark-places.co.uk/writing-competition/
http://www.falmouth.ac.uk/nickdarkeaward
http://www.navegator.co.uk/competition.html
http://www.writeaplay.co.uk/about/
https://www.facebook.com/andrewcole2013?ref=stream
http://www.writersofthefuture.com/contest