Do other SE's use page rank?

Similar algorithms?

[Naidu]

like google other search engines calculate pagerank
if answer is yes how they calculate.

[trillianjedi]

Hi Naidu,

The simple answer is yes.

How do they calculate it? Google's PageRank system relates to the number of external pages (i.e. those not on your domain) that link to your pages.

I'm sure the other main SE's use a similar system.

TJ