The new social media sites—blogs, wikis, del.icio.us and Flickr, among others—underscore the transformation of the Web to a participatory medium in which users are actively creating, evaluating and distributing information. The photo-sharing site Flickr, for example, allows users to upload photographs, view photos created by others, comment on those photos,… (More)
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of ARL, ARO, ASD (R&E), NSA, or NSF. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Abstract It is more expensive and time… (More)
A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy. Abstract In today's interconnected world, threats from anywhere in the world can have serious global repercussions. In particular, two types of threats have a global impact: 1) cyber crime and 2) cyber and biological weapons. If a country's… (More)
The history of the slate industry in Buckingham County, Virginia" (1948). Master's Theses. Paper 38.