Hi,
Some time ago, I've created a site called blockorigin, to get a view on the pools that are mining blocks.
The site has information about the last 2 weeks of blocks: every block is labeled with the pool that generated the block.
I've also created a ranking of pools, and a nice pie chart so you can visualize the pools.
I've never created some kind of official announcement of this project, so here it is.
The website is at http://blockorigin.pfoe.be
I'd like to invite everybody to have a look, and please, if you know of any pools that are not visible on this website, inform me so I can add that pool. I'm currently still at 19% of unknown blocks, and would like to be as complete as possible.
Should any other features be interesting too, feel free to comment