According to the BBC, an association of cheesemakers from Somerset have come up with a new and innovative marketing campaign for the die-hard cheese lovers amongst us.

The new cheddarvision webcam is set up so that customers can watch their cheese maturing over the course of a year. The feed was reportedly started on the first day of 2007, but the site had been running for several days before that, and the counter has now reached 10 days.

So, is it legitimate? Difficult to say. The West Country Farmhouse Cheesemakers does seem to be a real organisation, and yes, they produce cheese. As to the webcam, that's more difficult to say. Cheese isn't the most mobile of subject matter, and it's nigh impossible to tell whether it is a current web feed or just looped footage. Or, indeed, a photograph.
(Thanks, Dave.)

UPDATE 2/4/07: It is clear now that this is a real web feed. Here is a time lapse video of months 0-3.
(Thanks, Beasjt.)