We have found the agritourism site really useful - [www.booking.com
and through this site (and other googling) booked and planned two trips to Italy this way. We book places with swimming pools, and you eat communally (breakfast and then cooked for at night, usually with fresh produce from the farm)(this is a good way for chidlren to be able to meet up and play with others as well as meeting people from all over and having some realy good adult chats as well).
The agritourism places are generally very big farms / old houses restored, so they are a bit out of the main city place, so we hire a car and during the day drive somewehre, but back late afternoon to relax at pool, read books, and enjoy some wine & good food under the stars!
You can usually choose costs according to accomodation etc. we do a mixture throughout
e.g place still in my dreams [www.lamadiluna.com
or this place run by the fabulous domenica ...
We have also done a holiday in Portugal at this spot -