Ever need to provide a list of items/products ranked by their cumulative positive and negative ratings? It's not as easy to do it well as you might think. Still, there may be an answer:
We need to balance the proportion of positive ratings with the uncertainty of a small number of observations. Fortunately, the math for this was worked out in 1927 by Edwin B. Wilson. What we want to ask is: Given the ratings I have, there is a 95% chance that the "real" fraction of positive ratings is at least what? Wilson gives the answer.
Read: How Not To Sort By Average Rating
This "Terms of Service; Didn't Read" site has a neat idea:
ToS;DR aims at creating a transparent and peer-reviewed process to rate and analyse Terms of Service and Privacy Policies in order to create a rating from Class A to Class E.
Sadly, the site itself seems to have an inconsistent idea of what criteria each reviewed site should need to pass for an "A" grade. Hopefully they get this organized, because seeing a clear and concise Terms of Service can be meaningful in choosing a service provider.