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xkcd - A Webcomic - Apocalypse
the dead walk the earth and mathematicians race to get a lower Erdos number.
Detecting implausible social network effects in acne, height, and headaches: longitudinal analysis -- Cohen-Cole and Fletcher 337: a2533 -- BMJ
Objective To investigate whether "network effects" can be detected for health outcomes that are unlikely to be subject to network phenomena.
Design Statistical analysis common in network studies, such as logistic regression analysis, controlled for own and friend’s lagged health status. Analyses controlled for environmental confounders.
Setting Subsamples of the National Longitudinal Study of Adolescent Health (Add Health).
Participants 4300 to 5400 male and female adolescents who nominated a friend in the dataset and who were both longitudinally surveyed.
Measurements Health outcomes, including headache severity, acne severity, and height self reported by respondents in 1994-5, 1995-6, and 2000-1.
Results Significant network effects were observed in the acquisition of acne, headaches, and height. A friend’s acne problems increased an individual’s odds of acne problems (odds ratio 1.62, 95% confidence interval 0.91 to 2.89). The likelihood that an individual had headaches also increased with the presence of a friend with headaches (1.47, 0.93 to 2.33); and an individual’s height increased by 20% of his or her friend’s height (0.18, 0.15 to 0.26). Each of these results was estimated by using standard methods found in several publications. After adjustment for environmental confounders, however, the results become uniformly smaller and insignificant.
Conclusions Researchers should be cautious in attributing correlations in health outcomes of close friends to social network effects, especially when environmental confounders are not adequately controlled for in the analysis.
List of “White Label” or “Private Label” (Applications you can Rebrand) Social Networking Platforms
Trampoline Systems - Products
Metascope is specialist software for organisational network analysis (ONA) and social network analysis (SNA) of large networks
» ReputationHQ - Private, social networks for collaborative reputation management and Enterprise ORM.
ReputationHQ searches for your desired information and pulls in articles automatically every 10 minutes! We search across millions of websites including:
Groundswell (Incorporating Charlene Li's Blog):
The future of social networks: Social networks will be like air
Le Monde.fr : Réseaux sociaux : des audiences différentes selon les continents
map of popular social networking sites around the world
Is the Tipping Point Toast? -- Duncan Watts -- Trendsetting
Duncan Watts dismantles the theory of 'connectors' or 'influentials' from Gladwell's Tipping Point and elsewhere.
How Technology Almost Lost the War: In Iraq, the Critical Networks Are Social — Not Electronic
article on history of network centric warfare and the shift to social network and social science tools for nationbuilding
Youth Online 2007
Just The Facts About Online Youth Victimization
Researchers Present the Facts and Debunk Myths
Loopster — all your friends in one place!
Loopster enables you to import your friends from various social networks, connect them together and watch how they change.
BlogStrings - the fun way to find new blogs and meet new bloggers!
BlogStrings is a new meeting site for bloggers and those who enjoy browsing blogs. BlogStrings is here to bring together bloggers and readers who share the same interests!
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