Thanks for the behind the scenes look at what you're doing. Restaurant websites are nearly universally bad - perhaps one of the worst industries on the web in proportion to how much people visit their sites, so it's great to see some good stuff going on.

I like how you're personally contacting clients. Obviously that won't scale once you've got dozens or hundreds of clients (and I believe you'll have that, soon), but for now that's a fantastic way to get great feedback and make those first clients feel very special.

You say you don't have a good way of explaining the importance/benefit of microdata to clients - why not? What have you tried, and what do they not understand about it? I'm curious as to what reactions you've gotten - I think that could/should be a fairly big selling point if you're able to execute on it well, but obviously it's not much of a selling point if the prospect (or client) doesn't understand the value.