... acquire information about friendship relations, we developed anagent that automatically visits the friend-list page of a real user seed profile,and then recursively, acquires friendship relations ... friend-list pages offriends of the seed, and so on, down to the third sub-level of friendship relations.Only friendship relations among real users have been acquired, fan pages andcompanies ... Analyzing the Facebook Friendship GraphSalvatore Catanese1, Pasquale De Meo2, Emilio Ferrara3, Giacomo Fiumara11Dept....