Businesses cannot afford to ignore social media, with companies in the Fortune Global 100 mentioned a total of 10,4-million times online during a month-long period.

The majority of these mentions happened on Twitter, according to the Third Annual Burson-Marsteller Global Social Media Check-up which includes new data provided by Visible Technologies, which provides social media monitoring, analytics and services for enterprises globally.

The Burson-Marsteller Global Social Media Check-up 2012 examined the Fortune Global 100’s use of popular social networking platforms including: Twitter, Facebook, YouTube and,for the first time,Google Plus and Pinterest.This year,Visible Technologies provided data on social media users’ discussions of companies online.

In 2012, the vast majority of companies (87%) are using at least one of the major social platforms to communicate with online stakeholders with by far the largest growth in corporate usage occurring on YouTube. The study found there has been a 39% jump in the percentage of companies with a branded YouTube channel. Seventy-nine percent of companies in the study are now using a branded YouTube channel compared to 57% in 2011. These channels each average more than 2-million views and 1 669 subscribers.

Still, the study found that Twitter is the most popular platform for both companies and for online discussions about these companies. Indeed, 82% of Fortune Global 100 companies have at least one Twitter account, while each company was mentioned an average of 55 970 times on Twitter.

“This year’s study shows an interesting trend in the increase of content creation among the Fortune Global 100,” says Burson-Marsteller Worldwide CEO Mark Penn. “Since 2010, it has been interesting to see the companies’ use evolve from broadcasting to engagement to content creation. Companies are now integrating more original multimedia content to share with followers on Twitter, Facebook and YouTube.”

Stakeholders are also following global companies closely. Since 2011, the average number of followers per corporate Twitter account has nearly tripled to 14 709 from 5 076. On Facebook, the average number of likes per company page has increased by 275% since 2010 to 152 646 likes in 2012.

Other key findings include:

* Fortune Global 100 companies have more accounts on each platform than ever before with an average of: 10,1 Twitter accounts, 10,4 Facebook pages, 8,1 YouTube channels, 2,6 Google Plus pages and 2 Pinterest accounts.

* Seventy-four percent of companies studied have a Facebook page.

* Ninety-three percent of corporate Facebook pages are updated weekly.

* Forty-eight percent of companies are now on Google Plus.

* Twenty-five percent of companies have Pinterest accounts.

* Each corporate Facebook page has an average of 6 101 people talking about it.