A benchmarking friend of mine (see? I do have some) sent me the link to Geograph today. It is an OS-sponsored website which collates photographs of every grid square in the UK - National Grid square to be precise. The term is 'geographing'. It's like a mini version of the Degree Confluence Project. I'm not surprised the OS sponsored this site; it's free (or pretty much free to them) crowd sourcing, but neatly organised into OS-speak. By this I mean, it functions around grid squares which land mappers in the UK are very happy with but for others, such as myself who think in lat/long, it drives me potty.
Can't blog for long, I'm off to play games with Perdita the Geograph hamster. Honestly!