With over 800 million (and counting) active users worldwide on Facebook alone, the continued frenetic growth in social media interaction may mean more marketing and networking opportunities for businesses, but it could also spell legal and financial trouble related to privacy and data security issues or resulting from incautious and cavalier use. Careless social media use by company representatives too often subjects a company to bad press or other public relations issues and can also lead to more serious concerns like legal trouble and loss of business opportunities. Careless social media use takes many forms, for example:An employee commenting about private
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.