The Times in London has launched a campaign to map the areas of London that require improvement for cycling. In a recent post I mentioned a similar bit of work being done by the University of NSW.
It is a fantastic tool that uses the power of the internet to get a whole lot of information relatively cheeply. Unfortunately it does not make the information available to the general public to see what hazards are being reported by others. They may have done that to avoid people copying other people's posts - they hope to get actual users instead of just web-surfers with time on their hands.