@unpublished{www2009277,
       booktitle = {18th International World Wide Web Conference},
           month = {April},
           title = {Snapshot of \www2009 Twitter},
          author = {Christopher Gutteridge},
       publisher = {Twitter},
            year = {2009},
             url = {http://www2009.eprints.org/277/},
        abstract = {As it is not currently possible to search for more than 1500 items on twitter, I took some snapshots of the results for searching #www2009. Each snapshot will heavily overlap the others, but duplication removal should be trivial.}
}