The remaining of this paper is organized as follows: In section II, we introduce some related works about data col- lection from OSN. Then, we describe different methods for data collection based on the social networking site such as Twitter, Facebook, LinkedIn and Yelp in III. We use the collected data for a research work related to ”Using Trust Management System in Twitter” and then show the collection techniques evaluations and results in section IV and V. Finally, we conclude in Section VI.