Geotagging on your picture can be a privacy issue, but can be a great way to find out where it was taken, can help recreate your trip (like what Instagram do). Through a social network it’s a great way to see what people are up to in that region/place/city.
So what not link both with food.
Everyone loves so much taking a picture of what they are eating on Instagram, you can take it to a whole other level
My wife used to follow a group on facebook where parents post images and recipes of what they are giving their kids for lunch. You could expand it and show what can be done depending on communities, you could look up what people are doing in other countries. It could be used to check out what local restaurants are serving and local food service can show what they can deliver for their client.
The closest I’ve seen that did something similar to this is Gigamunch for the local delivery part and for the recipe part like FoodPals.
How it works
They simply let you browse picture feeds like Instagram. When you see something you like, you can tap on it and it shows the recipe, where it was taken and if it’s a restaurant how to get there, could probably link to their full menu too. You can take a picture and from there tell if you took it from a restaurant or what are the ingredients if you did it yourself.
How to monetize
You could monetize it with ads and deals with brands to have their own recipes promoted on the network. Think of it as the recipe that comes with your cereal box, it usually includes other ingredients that the same company sells. Having a recipe on how to make rice krispies snack on the site promotes the cereal and brands could pay to have it on top of the list or search.
You could like the service with other services like blue apron or Instacart. You could select a recipe and use (Idea #35: What is in your fridge?) see if you have everything and use a service like Instacart (or similar service) to get the missing ingredients. In the case of a link with blue apron, you could have a recipe from blue apron and if there is an option to register or connect with you blue apron account to receive the ingredient for that recipe.