Ever since last year when social networking giant Facebook let marketers come in and make pages, a host of companies have been using the site to promote their products. Some have created pages, others have created tools that consumers can interact with including widgets. And now those widgets can be measured, another step in the dm direction that the social networks are taking.
http://www.adweek.com/aw/content_display/news/digital/e3i55fbb1a3b41a2bcd62c2a6872493fadd
