Ranking, listing and backscratching

Starting every fall and running through to the first issue of each calendar year is the season of congratulatory lists, whereby (primarily business) magazines trumpet the 100 this, the 50 that or the 1,000 whatever. It may be some of the least-read* material any of these magazines do, but the purpose is not readership but symbiotic promotion. (*I'd be happy to see research data that shows