Asmae El Kassiri, Fatima-Zahra Belouadha, The Online Social Networks Analysis: State of the Art, International Journal of Soft Computing, Volume 14,Issue 2, 2019, Pages 33-43, ISSN 1816-9503, ijscomp.2019.33.43, (https://makhillpublications.co/view-article.php?doi=ijscomp.2019.33.43) Abstract: Nowadays, the Online Social Networks OSN emergence has expanded the scope of these needs. In fact, besides the direct links between users, the OSN have various important information about user profiles, tastes and interactions or activities. This information richness has been exploited in the literature in particular social mining techniques to answer new analytical purposes such as influence analysis, trust analysis, opinion mining, recommendation, e-reputation, protection of privacy and detection of experts. Keywords: OSN;SNA;social mining;community detection;link prediction;similarity analysis;recommendation;influence;trust;e-reputation;opinion mining;experts detection;privacy and security on OSN