Did you see a mention of seaweed in the press last week? It's becoming increasingly popular with chefs and can retail for up to £200 per kilogram!!
Rory MacPhee has become the first person with a license to sell seaweed. In the UK, it is not currently legal to forage for food and then sell it on without a license. He is a founding member of the Seaweed health Foundation which is an independent foundation promoting the benefits of seaweed.
You can read more about the work he is doing here http://www.telegraph.co.uk/earth/agriculture/food/9675415/Seaweed-harvested-in-England-as-trendy-chefs-boost-prices.html