Unfortuneately the link list starts with the Chocolate Society, which as far as we can tell is not trading at the moment.
Following a conversation on Twitter last night, I am now looking for the best places in London to enjoy Hot Chocolate.
Best Loved Hotels told me they knew about pub crawls but asked had I heard of a hot cocoa crawl? The article that started this discussion was Ultimate Hot Chocolate Crawl: The 22 Best Hot Cocoas in New York City. What an incredible list! And you can see how much they enjoyed their research.