Some interesting conclusions from "Who's On Wikipedia" Part 5, for those of you who might be interested. Only 30% of Wikipedia BLPs have a counterpart somewhere on paper (in biographical dictionaries, other encyclopedias, Who's Whos, etc.).
Another particularly interesting fact is this: 7% of Wikipedia BLPs are for people who are at least mentioned in Britannica. These 7% of BLPs draw 71% of all BLP-related page views. Read all about it and more over at On Wikipedia.