@ Игорь Афанасьев
re: But any directory is good because it has a well-developed system of search
Please keep the search discussion in the search issue so it is not confusing or difficult to keep track of for both of us. Thanks!
re: the ability to assess
I think you mean “to rate, not “to assess” correct? If that is the case, then sorry, there is no ratings extension available at this time.