@article{lerman2006social,
  author = {Lerman, K. and Jones, L.},
  interhash = {ca87d38a2278011eea5cd7faefd0f2df},
  intrahash = {31208c29afdd24b49b0dd290821b0fa0},
  journal = {Arxiv preprint cs/0612047},
  title = {{Social browsing on flickr}},
  url = {http://scholar.google.de/scholar.bib?q=info:4ZJ0zK6yr5wJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  year = 2006
}

@article{van2007flickr,
  author = {Zwol, R. Van},
  booktitle = {Proceedings of the IEEE/WIC/ACM International Conference on Web Intelligence},
  interhash = {89958ed878553631a54fe0b6a1955d16},
  intrahash = {5aa097876f3069019e4ea74380b42ed8},
  organization = {IEEE Computer Society},
  pages = {184--190},
  title = {{Flickr: Who is Looking?}},
  url = {http://scholar.google.de/scholar.bib?q=info:YMoA8DCZLoMJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=5},
  year = 2007
}

@article{prieur2007strength,
  author = {Prieur, C. and Cardon, D. and Beuscart, J.S. and Pissard, N. and Pons, P.},
  interhash = {486a4d487adaaef47526fac1d2348398},
  intrahash = {df8ea0dfb666d1580a58e0ae2e90ea14},
  journal = {h http://arxiv. org/ftp/arxiv/papers/0802/0802.2317. pdf},
  title = {{The strength of weak cooperation: A case study on Flickr}},
  url = {http://scholar.google.de/scholar.bib?q=info:2JNrrjb49XMJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=1},
  year = 2007
}

@article{santos2009individual,
  author = {Santos-Neto, E. and Condon, D. and Andrade, N. and Iamnitchi, A. and Ripeanu, M.},
  booktitle = {Proceedings of the 20th ACM conference on Hypertext and hypermedia},
  interhash = {07a2f583edf181046a997bc59e7e56be},
  intrahash = {75da6d18a60db6c69d4f3cd2328abd58},
  organization = {ACM},
  pages = {183--192},
  title = {{Individual and social behavior in tagging systems}},
  url = {http://scholar.google.de/scholar.bib?q=info:78ozoF5AkegJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  year = 2009
}

@article{mislove2007measurement,
  author = {Mislove, A. and Marcon, M. and Gummadi, K.P. and Druschel, P. and Bhattacharjee, B.},
  booktitle = {Proceedings of the 7th ACM SIGCOMM conference on Internet measurement},
  interhash = {cb29c839ea0b125778ae58934f35082f},
  intrahash = {aa568938d581a2885e7898e4852ee62f},
  organization = {ACM},
  pages = 42,
  title = {{Measurement and analysis of online social networks}},
  url = {http://scholar.google.de/scholar.bib?q=info:HmucgVkM3hQJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  year = 2007
}

@article{menczer2004lexical,
  author = {Menczer, F.},
  interhash = {fc9deff63fcbfcf113e880fad70d58a1},
  intrahash = {4c5ee73ae6eceab49b040bb63deae554},
  journal = {Journal of the American Society for Information Science and Technology},
  number = 14,
  pages = {1261--1269},
  publisher = {Citeseer},
  title = {{Lexical and semantic clustering by web links}},
  url = {http://scholar.google.de/scholar.bib?q=info:qmPuziT0_h0J:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  volume = 55,
  year = 2004
}

@inproceedings{1150476,
  abstract = {In this paper, we consider the evolution of structure within large online social networks. We present a series of measurements of two such networks, together comprising in excess of five million people and ten million friendship links, annotated with metadata capturing the time of every event in the life of the network. Our measurements expose a surprising segmentation of these networks into three regions: singletons who do not participate in the network; isolated communities which overwhelmingly display star structure; and a giant component anchored by a well-connected core region which persists even in the absence of stars.We present a simple model of network growth which captures these aspects of component structure. The model follows our experimental results, characterizing users as either passive members of the network; inviters who encourage offline friends and acquaintances to migrate online; and linkers who fully participate in the social evolution of the network.},
  address = {New York, NY, USA},
  author = {Kumar, Ravi and Novak, Jasmine and Tomkins, Andrew},
  booktitle = {KDD '06: Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining},
  doi = {http://doi.acm.org/10.1145/1150402.1150476},
  interhash = {d3729a29d377e03b31c80bcc58843681},
  intrahash = {03874e666c56f22bce1b7db254420d77},
  isbn = {1-59593-339-5},
  location = {Philadelphia, PA, USA},
  pages = {611--617},
  publisher = {ACM},
  title = {Structure and evolution of online social networks},
  url = {http://portal.acm.org/citation.cfm?id=1150402.1150476},
  year = 2006
}

@article{broder2000graph,
  author = {Broder, A. and Kumar, R. and Maghoul, F. and Raghavan, P. and Rajagopalan, S. and Stata, R. and Tomkins, A. and Wiener, J.},
  interhash = {98795b0cdfa813f7dcc49723c426634d},
  intrahash = {2bacaf21af433dbad4c6574bf726e5fd},
  journal = {Computer Networks},
  number = {1-6},
  pages = {309--320},
  publisher = {Elsevier},
  title = {{Graph structure in the web}},
  url = {http://scholar.google.de/scholar.bib?q=info:XK3rB5QCtqgJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  volume = 33,
  year = 2000
}

@article{li2005towards,
  author = {Li, L. and Alderson, D. and Doyle, J.C. and Willinger, W.},
  interhash = {5f8381f5e7d915be9eb1682ac54d1c79},
  intrahash = {5d2a7bda356317c8d6a6af168128ade1},
  journal = {Internet Mathematics},
  number = 4,
  pages = {431--523},
  publisher = {AK Peters},
  title = {{Towards a theory of scale-free graphs: Definition, properties, and implications}},
  url = {http://scholar.google.de/scholar.bib?q=info:Xi5NYPJyMvMJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  volume = 2,
  year = 2005
}

@article{Almendral2007675,
  abstract = {We use the emergent field of complex networks to analyze the network of scientific collaborations between entities (universities, research organizations, industry related companies,...) which collaborate in the context of the so-called framework programme. We demonstrate here that it is a scale-free network with an accelerated growth, which implies that the creation of new collaborations is encouraged. Moreover, these collaborations possess hierarchical modularity. Likewise, we find that the information flow depends on the size of the participants but not on geographical constraints.},
  author = {Almendral, Juan A. and Oliveira, J.G. and López, L. and Mendes, J.F.F. and Sanjuán, Miguel A.F.},
  doi = {DOI: 10.1016/j.physa.2007.05.049},
  interhash = {999b6173bf61181a3ec70b140af51009},
  intrahash = {5e2201924073d4b98c68f9d23c171f41},
  issn = {0378-4371},
  journal = {Physica A: Statistical Mechanics and its Applications},
  number = 2,
  pages = {675 - 683},
  title = {The network of scientific collaborations within the European framework programme},
  url = {http://www.sciencedirect.com/science/article/B6TVG-4NTJH10-4/2/b209f12299c9e1d367a8298e7d986215},
  volume = 384,
  year = 2007
}

@article{leskovec2008planetary,
  author = {Leskovec, J. and Horvitz, E.},
  interhash = {27d7144813bb85492b18cad6cf6525e7},
  intrahash = {958ce0f9954243d9b27e7e7fee063b01},
  publisher = {ACM New York, NY, USA},
  title = {{Planetary-scale views on a large instant-messaging network}},
  url = {http://scholar.google.de/scholar.bib?q=info:dvYmn_qj6NQJ:scholar.google.com/&output=citation&hl=de&as_sdt=2000&ct=citation&cd=0},
  year = 2008
}