From the report: "Social
media content has grown exponentially in the recent years and the role of
social media has evolved from just narrating life events to actually shaping
them. In this paper we explore how many resources shared in social media are
still available on the live web or in public web archives. By analyzing six different
event-centric datasets of resources shared in social media in the period from
June 2009 to March 2012, we found about 11% lost and 20% archived after just a
year and an average of 27% lost and 41% archived after two and a half years.
Furthermore, we found a nearly linear relationship between time of sharing of
the resource and the percentage lost, with a slightly less linear relationship
between time of sharing and archiving coverage of the resource. From this model
we conclude that after the first year of publishing, nearly 11% of shared
resources will be lost and after that we will continue to lose 0.02% per
day." Read more