Here at Zebtab, we use the UserVoice service and have been very impressed. It gives our users, mainly sports fans, a chance to tell us how we can improve our aggregated desktop widget and what we should develop in the future. We have a UserVoice tab on all our download pages, eg http://www.manutd.zebtab.com, within the application and on our homepage as a widget http://www.zebtab.com. We have gained valuable user intelligence and would recommend the service.
Absolutely agree. Other newspaper sites are monetising in slightly different ways - dating, fantasy football & bingo etc, though not sure the FT would approve of the latter! Maybe Fantasy Stock Markets instead.