This study looks at the usage of social media in fastest-growing Inc. 500 companies:
All respondents were asked if their company monitors its brands or company name in the social media space. 68% reported that they do monitor their products and brands. That number is up from 60% in 2008 and 50% just two years ago.
In the 2007 study, wikis were the least familiar to the Inc. 500, but in 2008 wikis jumped ahead of podcasting in familiarity. In 2009, there is no significant difference between familiarity with message boards, podcasting and wikis.
27% of respondents who do not currently have a business presence on Twitter plan to move into that space. Even though the use of online video appears to have dropped slightly, the intent to adopt it appears strong. link.