The United States SOPA (Stop Online Piracy Act) and PIPA (Protect Intellectual Property Act) will have a profoundly negative effect on online social networks if they go through. As Wikipedia describes it, the proposed legislation will not achieve the goal of stopping online piracy and copyright infringement. Instead:
If you’re in the USA, please consider signing the SOPA petition on Google or writing to your local representative. The Wikipedia homepage can currently direct you who to write to by simply typing in your zip code. What happens in America with SOPA will affect us all – Sociology at Work is a not for profit that relies upon information and resource sharing, as does the research and activism of all sociologists.
Read more on SOPA and PIPA here from Wiki.