Give networks crowds and markets a glance. It's a fun book. https://www.cs.cornell.edu/home/kleinber/networks-book/networks-book.pdf https://www.cs.cornell.edu/

Give networks crowds and markets a glance. It's a fun book. https://www.cs.cornell.edu/home/kleinber/networks-book/networks-book.pdf https://www.cs.cornell.edu/home/kleinber/networks-book/netwo... But thats from Kleinberg - the person who I was referring to :-) After that there is personalised page rank / Salsa which are probably the more widely known approaches to identifying trust worthy nodes in a graph.