PageRank-like ranking

It would be really cool to have a PageRank-link algorithm that answers the key questions:

what is the best content for subject X.
For example, if you are reading cirosantilli/riemann-integral and it is crap, you would be able to click the button
Versions by other authors
which leads you to the URL: ourbigbook.com/subject/mathematics. This URL then contains a list of all pages people have written about the subject mathematics, sorted by some algorithm, containing for example:
- ourbigbook.com/johnsmith/riemann-integral
- ourbigbook.com/cirosantilli/riemann-integral
This URL would also contain a list of issues/comments that are related to the subject.
who knows the most about subject X. This can be found by visiting: ourbigbook.com/users/mathematics "Top Mathematics users", which would contain the list of users sorted by the algorithm:
- ourbigbook.com/johnsmith
- ourbigbook.com/cirosantilli

However, Ciro has decided to leave this for phase two action plan, because it is impossible to tune such an algorithm if you have no users or test data.

Perhaps it is also worth looking into ExpertRank, they appear to do some kind of "expert in this area", but with clustering (unlike us, where the clustering would be more explicit).

 Ancestors

 Incoming links

Action plan