I like writing reviews. I like helping out others in discovering new bars or restaurant, avoiding tourist traps or crappy products and in general discovering cool new stuff. However, it has always nagged me that I am really writing for free for those huge corporations that then go on to sell ads (or apply, as with for example Yelp, even shadier business tactics) next to my reviews.
So, for me at least, lib.reviews is the solution: Not only can you review everything that has an URL (which, let’s face it, today is basically anything), but your reviews will be published under an open license so that everyone can freely download and benefit from them (similar to Wikipedia or OpenStreetMap). And by integrating with open data sources such as Wikidata or (hopefully in the future) OpenStreetMap, the reviews will be tied into a vibrant, open and truly free data ecosystem.