Still only very few companies in Germany, Austria and Switzerland use blogs as a tool for their internal or external communication. There are estimates of a couple of hundred corporate blogs in Germany and most probably only a couple of dozen in Austria or Switzerland (there are no reliable sources of studies for these numbers). There's definitely no comparison to the hype about this topic from companies in the US like
Macromedia,
IBM,
Boeing,
Microsoft,
Sun and many others. Main reason is definitely the small blogosphere in German speaking countries and also the little interest from the 'old' media in taking over the topics the blogosphere generates (see critical comments from one of the institutes from the University of Zurich in German
here).
Still, there's a growing interest from companies for blogs and also podcasts to use them as a CRM instrument to bind potential and actual customers. Anyway, to have the intended effect - to find and bind customers - the blogosphere in general must be read and also used by a critical number of people. The last couple of years, the blogosphere has been growing and growing, and there has also been a huge interest from the old and new media in this new form of communication.
Only time will tell if the blogosphere is only a buzz or if there's real potential in using blogs as a marketing tool.
Either way, for companies it's an easy and inexpensive possibility to communicate and interact with different kind of people, critics or also customers. First of all, companies who are deciding to have their own blog must get an overview on Corporate Blogging. As a first overview, follow these two links:
Sifry's Alert - founder and CEO of Technorati, David Sifry, speaks regularly about the emerging blogosphere; and
The NewPRWiki - a huge amount of information all concerning blogs, with focus on business blogs.