Visitor reviews

What's the best way(s) to achieve these? We've been thinking about this & discussing it with our visitors. We've left a questionnaire in the rooms since we started, but these can't easily be shared on-line. So we now have reviews on Google Maps (by searching on Fraser's B&B, Stirling and clicking on Write a review), we've also just started a Facebook page (see http://www.facebook.com/pages/Stirling/Frasers-Bed-and-Breakfast/108439692539521 ) although it's still very rudimentary. We'd like to be able to give prospective visitors a feel for Fraser's from others who have stayed, as well as giving visitors a chance to have their say. Would you like to comment on whether these review methods are helpful, or should we be trying something else? We've also had a suggestion of a small book, which can be left on the breakfast tables for visitors to read while they're munching their breakfasts. It's suggested that visitors write in their own language, to add to the interest for the reader. However, despite all this, if visitors do not wish to leave a review, that's OK too.