- Communication Workers' Union (national) [1]
- CWU London region [2]
- CWU London branches [3]
- 'Royal Mail chat': rank-and-file postal workers' website [4]
Links:
[1] http://www.cwu.org/
[2] http://www.cwulondon.org.uk/
[3] http://www.cwu.org/london.html
[4] http://www.royalmailchat.co.uk/home.php