According to Burson-Marsteller’s Fortune Global 100 Social Media Study, 79 percent of the largest 100 companies in the Fortune Global 500 index are using at least one of the most popular social media platforms: Twitter, Facebook, YouTube or corporate blogs.
65% are on Twitter 54% have a Facebook fan page, 50% have a YouTube channel 33% have corporate blogs 20% are using all of the above
There’s more in BM’s presentation, here: Global Social Media Checkup
Marshall Kirkpatrick at ReadWriteWeb has a story on new service, RSSFriends, which offers an RSS feed of any accounts that follow or unfollow a given account among other things. Marshall astutely points out, a service like that can be gold for online brand management.