If you want to move outside of Brighton & Hove by mutual exchange, these sites may help you
Free exchange services
Community Council House Exchange
UK-wide database and forum
Council House Exchanges -
www.macpic.com/home/index.php
UK-wide database and forum, broken down by region
Exchange UK -
www.exchangeuk.co.uk
UK-wide database, restricted free access with option to pay for 'premier membership'
Exchange Your Home -
www.exchangeyourhome.co.uk
UK-wide database and forum
Houseswap Forum -
houseswapforum.co.uk
UK-wide database, restricted free access with option to pay for enhanced services
Paid for exchange services
UKhomeswap -
houseswapforum.co.uk
Exchange Homes -
www.exchange-homes.co.uk
Homeswapper -
www.homeswapper.co.uk
Launched in February 2007, it's currently a free service but will be charging in the future