Cheekymonkey.com
Win loads of prizes with new ones added every week. Win holidays, entertainment for your home and a host of other things.
http://www.cheekymonkey.com

Compaholics
Guide to a wide variety of online competitions.
http://www.compaholics.co.uk

Competition Search
Search Engine for UK WWW Competitions
http://thor.prohosting.com/~pepsiman

Comps.org
Listing of currently valid UK competitions and winning slogans from previous competitions.
http://uk.comps.org

Dot Comper
Over 25,000 winning UK slogans along with what the latest competitions are and where to find them. Requires registration.
http://www.dotcomper.co.uk

Loquax's Quick Picks
A collection of online competitions and prize draws.
http://www.loquax.co.uk/wwwcomp/prizes.htm

MyOffers
Prize draws and online competitions - win flights, cars and money.
http://www.myoffers.co.uk

Prize Focus
Automatic UK competitions and prize draw entry service.
http://www.prizefocus.com

Scant Reward
Competition listings site. Requires registration.
http://www.scant-reward.co.uk

Tombola UK
Offering free to play, instant win games.
http://uk.tombola.com/Default.asp

Top Prize UK
Offering a range of prizes by purchasing a ticket.
http://www.topprize.co.uk

UK Competitions
Offering a range of competitions from cash to music. Includes winners board and members club.
http://www.ukcompetitions.com

UK Competitions .Net
Collection of UK specific competitions, quizzes and contests.
http://www.ukcompetitions.net

UK Wins
A to Z listing of the best competitions in the UK with daily updates.
http://www.ukwins.co.uk

Winspiration
Competition tiebreakers: help, inspiration, ideas and past winning examples.
http://www.winspiration.co.uk