PageRank is a standard and much discussed topic in SEO and while it is relevant, the methods and techniques discussed are often not. There is a lot of discussion around the original PageRank formula which is relevant, but there have been many changes and improvements since 1998. If you are an SEO who works with PageRank, you should read the following list of papers because they show that substantial change has ocurred since the early beginnings of the algorithm.
IMO there MozRank is far more valuable to SEOs than PageRank for the purpose of link analysis and seeing how the whole site structure holds, but that’s a discussion for another day.
Alternatives to PageRank:
Specifially aimed at SEO:
Check out how to play to PageRank yourself: