V. Abisheva-2014-]-adiya-abisheva, . Rama-kiran, D. Garimella, I. Garcia, and . Weber, Who watches (and shares) what on YouTube? And when?: using Twitter to understand YouTube viewership, Proc. of ACM WSDM'14, 2014.

M. Jisun-an, K. P. Cha, J. Gummadi, and . Crowcroft, Media Landscape in Twitter: A World of New Conventions and Political Diversity, Proc. of the Fifth AAAI International Conference on Weblogs and Social Media, 2011.

]. Bakshy, J. M. Hofman, A. Winter, D. J. Mason, and . Watts, Everyone's an influencer, Proceedings of the fourth ACM international conference on Web search and data mining, WSDM '11, 2011.
DOI : 10.1145/1935826.1935845

J. Oliveira, E. Martins, L. Mendes-rodrigues, and . Sarmento, TwitterEcho: a distributed focused crawler to support open research with twitter data, Proc. of WWW '12 Companion, 2012.

N. B. Boyd and . Ellison, Social Network Sites: Definition, History, and Scholarship, Journal of Computer-Mediated Communication, vol.3, issue.1, pp.210-230, 2007.
DOI : 10.1111/j.1083-6101.2007.00393.x

A. Broder, R. Kumar, F. Maghoul, P. Raghavan, R. Sridhar-rajagopalan et al., Graph structure in the Web, Proc. of WWW'00, 2000.
DOI : 10.1016/S1389-1286(00)00083-9

H. Meeyoung-cha, P. Kwak, Y. Rodriguez, S. Ahn, and . Moon, Analyzing the Video Popularity Characteristics of Large-Scale User Generated Content Systems, IEEE/ACM Transactions on Networking, vol.17, issue.5, pp.1357-1370, 2009.
DOI : 10.1109/TNET.2008.2011358

H. Meeyoung-cha, F. Haddadi, K. P. Benevenuto, and . Gummadi, Measuring User Influence in Twitter: The Million Follower Fallacy, Proc. of AAAI ICWSM'10, 2010.

M. Cha, F. Benevenuto, H. Haddadi, and K. P. Gummadi, The World of Connections and Information Flow in Twitter. Systems, Man and Cybernetics, Part A: Systems and Humans, IEEE Transactions, vol.42, issue.4, pp.991-998, 2012.

]. Chu, S. Gianvecchio, H. Wang, and S. Jajodia, Detecting Automation of Twitter Accounts: Are You a Human, Bot, or Cyborg? Dependable and Secure Computing, IEEE Transactions on, vol.9, issue.6, pp.811-824, 2012.

H. Morris and . Degroot, Reaching a Consensus, Journal of the American Statistical Association, vol.69, issue.345, pp.118-121, 1974.

D. Easley and J. Kleinberg, Networks, crowds, and markets: Reasoning about a highly connected world, 2010.
DOI : 10.1017/CBO9780511761942

K. David-ediger, J. Jiang, D. A. Riedy, C. Bader, and . Corley, Massive Social Network Analysis: Mining Twitter for Social Good, Proc. of IEEE ICPP'2010, 2010.

]. Gabielkov, A. Ramachandran, A. Chaintreau, and A. Legout, Social Clicks: What and Who Gets Read on Twitter, ACM SIG- METRICS / IFIP Performance 2016, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01281190

B. Saptarshi-ghosh, F. Viswanath, N. Kooti, G. Kumar-sharma, F. Korlam et al., Understanding and combating link farming in the Twitter social network, Proc. of WWW'12, 2012.

]. M. Gjoka, M. Kurant, C. T. Butts, and A. Markopoulou, Walking in Facebook: A Case Study of Unbiased Sampling of OSNs, 2010 Proceedings IEEE INFOCOM, pp.1-9, 2010.
DOI : 10.1109/INFCOM.2010.5462078

]. Goel, A. Broder, E. Gabrilovich, and B. Pang, Anatomy of the long tail, Proceedings of the third ACM international conference on Web search and data mining, WSDM '10, 2010.
DOI : 10.1145/1718487.1718513

L. Nidhi-hegde, L. Massoulié, and . Viennot, Self-Organizing Flows in Social Networks, Proc. of SIROCCO'13, pp.116-128, 2013.

]. Hu and W. Lau, A survey and taxonomy of graph sampling. arXiv preprint, 2013.

D. Bernardo-huberman, F. Romero, and . Wu, Social networks that matter: Twitter under the microscope, First Monday, vol.14, issue.1, 2008.

A. Java, X. Song, T. Finin, and B. Tseng, Why we twitter, Proceedings of the 9th WebKDD and 1st SNA-KDD 2007 workshop on Web mining and social network analysis , WebKDD/SNA-KDD '07, 2007.
DOI : 10.1145/1348549.1348556

]. Katz, The Two-Step Flow of Communication: An Up-To-Date Report on an Hypothesis, Public Opinion Quarterly, vol.21, issue.1, Anniversary Issue Devoted to Twenty Years of Public Opinion Research, p.61, 1957.
DOI : 10.1086/266687

J. M. David-kempe, É. Kleinberg, and . Tardos, Maximizing the spread of influence through a social network, Proc. of ACM SIGKDD KDD'03, 2003.

M. Jon and . Kleinberg, Cascading behavior in networks: Algorithmic and economic issues Algorithmic game theory, 2007.

H. Haewoon-kwak, S. Chun, and . Moon, Fragile online relationship: a first look at unfollow dynamics in Twitter, Proc. of ACM CHI'11, 2011.

C. Haewoon-kwak, H. Lee, H. Park, S. Chun, and . Moon, Novel aspects coming from the directionality of online relationships: a case study of Twitter, SIGWEB Newsl, vol.5, pp.1-5, 2011.

A. Kyrola, G. Blelloch, and C. Guestrin, GraphChi: Large-Scale Graph computation on Just a PC, Proc. of USENIX OSDI'12, 2012.

]. A. Leon-garcia and . Leon-garcia, Probability, statistics, and random processes for electrical engineering, 2008.

R. Kristina-lerman, T. Ghosh, and . Surachawala, Social Contagion: An Empirical Study of Information Spread on Digg and Twitter Follower Graphs, 2012.

J. M. Nowell and . Kleinberg, Tracing information flow on a global scale using Internet chain-letter data, PNAS, p.4633, 2008.

C. G. Lord, L. Ross, and M. R. Lepper, Biased assimilation and attitude polarization: The effects of prior theories on subsequently considered evidence., Journal of Personality and Social Psychology, vol.37, issue.11, p.2098, 1979.
DOI : 10.1037/0022-3514.37.11.2098

T. Jake, N. V. Lussier, and . Chawla, Network Effects on Tweeting Discovery Science, Lecture Notes in Computer Science, vol.6926, issue.18, pp.209-220, 2011.

]. Mao, X. Shuai, and A. Kapadia, Loose tweets, Proceedings of the 10th annual ACM workshop on Privacy in the electronic society, WPES '11, 2011.
DOI : 10.1145/2046556.2046558

A. Chaintreau, N. Korula, and S. Lattanzi, Filter & Follow: How Social Media Foster Content Curation, Proc. of ACM SIGMETRICS'14, 2014.

]. H. Mcmahan, G. Holt, D. Sculley, M. Young, and D. Ebner, Ad click prediction, Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining, KDD '13, 2013.
DOI : 10.1145/2487575.2488200

B. Brendan-meeder, A. Karrer, R. Sayedi, C. Ravi, J. Borgs et al., We know who you followed last summer: inferring social link creation times in twitter, Proc. of WWW'11, 2011.

]. A. Mitchell, J. Gottfried, J. Kiley, and K. E. Matsa, Political Polarization & Media Habits, 2014.

J. Robert and . Moore, Twitter Data Analysis: An Investor's Perspective, 2009.

]. Neglia, X. Ye, M. Gabielkov, and A. Legout, How to network in online social networks, 2014 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), pp.819-824, 2014.
DOI : 10.1109/INFCOMW.2014.6849336

URL : https://hal.archives-ouvertes.fr/hal-00954271

Y. Ok, J. Jin, Y. Shin, and . Yi, On maximizing diffusion speed in social networks, Proc. of ACM SIGMETRICS'14, 2014.

K. W. Sai-teja-peddinti, J. Ross, and . Cappos, On the Internet, Nobody Knows You'Re a Dog": A Twitter Case Study of Anonymity in Social Networks, Proceedings of the Second ACM Conference on Online Social Networks, COSN '14, pp.83-94, 2014.

]. Pinto, P. Thiran, and M. Vetterli, Locating the Source of Diffusion in Large-Scale Networks, Physical Review Letters, vol.109, issue.6, p.68702, 2012.
DOI : 10.1103/PhysRevLett.109.068702

A. Ramachandran, Y. Kim, and A. Chaintreau, "I knew they clicked when i saw them with their friends", Proceedings of the second edition of the ACM conference on Online social networks, COSN '14, pp.239-246, 2014.
DOI : 10.1145/2660460.2660461

]. A. Saroop and A. Karnik, Crawlers for social networks & structural analysis of Twitter, 2011 IEEE 5th International Conference on Internet Multimedia Systems Architecture and Application, 2011.
DOI : 10.1109/IMSAA.2011.6156368

]. Sharma, S. Ghosh, F. Benevenuto, N. Ganguly, and K. P. Gummadi, Inferring who-is-who in the Twitter social network, 2012.

]. Szabo and B. A. Huberman, Predicting the popularity of online content, Communications of the ACM, vol.53, issue.8, 2010.
DOI : 10.1145/1787234.1787254

]. Thomas, C. Grier, D. Song, and V. Paxson, Suspended accounts in retrospect, Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference, IMC '11, 2011.
DOI : 10.1145/2068816.2068840

]. and H. Wang, Don't follow me: Spam detection in Twitter, Proc. of SECRYPT'2012, 2010.

]. L. Wang, A. Ramachandran, and A. Chaintreau, Measuring click and share dynamics on social media: a reproducible and validated approach, Proc. of AAAI ICWSM NECO'16, 2016.

S. Webberley, R. Allen, and . Whitaker, Retweeting: A study of message-forwarding in twitter, 2011 Workshop on Mobile and Online Social Networks, 2011.
DOI : 10.1109/MOSN.2011.6060787

A. Bernardo and . Huberman, Novelty and collective attention, PNAS, pp.17599-17601, 2007.

]. Wu, J. M. Hofman, A. Winter, D. J. Mason, and . Watts, Who says what to whom on twitter, Proceedings of the 20th international conference on World wide web, WWW '11, 2011.
DOI : 10.1145/1963405.1963504

]. Xu, R. Wu, K. Zhu, B. Hajek, R. Srikant et al., Jointly clustering rows and columns of binary matrices, Proc. of ACM SIGMETRICS'14, 2014.

]. Yang, R. Harkreader, J. Zhang, S. Shin, and G. Gu, Analyzing spammers' social networks for fun and profit, Proceedings of the 21st international conference on World Wide Web, WWW '12, 2012.
DOI : 10.1145/2187836.2187847

S. F. Shaozhi-ye and . Wu, Measuring message propagation and social influence on Twitter.com, Proc. of SocInfo'10, 2010.

]. Zadeh, A. Goel, K. Munagala, and A. Sharma, On the precision of social and information networks, Proc. of ACM COSN'13, 2013.

]. Zhang, B. Liu, B. Nie, Z. Xu, X. Weng et al., Leveraging online social friendship to improve data swarming performance, Computer Networks, vol.71, pp.130-143, 2014.
DOI : 10.1016/j.comnet.2014.06.012