Changes in Facebook making users reveal more
If you suddenly feel the urge to share more on Facebook, it may have something to do with the latest policy changes on the social networking site.

According to a new study, Facebook changes led users to reveal more. The seven-year study by Carnegie Mellon University researchers said users had been moving toward greater privacy settings from 2005 to 2009, but that the trend reversed with the Facebook changes in 2009 and 2010.

The study found evidence of three contrasting trends in the amount of information Facebook users disclosed over time: decreasing public disclosures; abrupt changes in disclosure due to interface and policy changes; and increasing private disclosures, Providence Journal reported.

The 2005-2011 study, which appears in The Journal of Privacy and Confidentiality is the first longitudinal study to document how privacy and disclosure evolve on social network sites over an extended period of time. Researchers found that from 2005-2009 , Facebook users displayed more privacy-seeking behaviour, progressively decreasing the amount of personal data shared with the public.