Measuring Corporate Blogging ROI

The bottom line of any business is to make money. The constant challenge social media professionals like myself meet every day is to proof that all the wonderful and fun things we do for our employers and clients actually worth their money. We're all in the search of one perfect formula that will put a price tag on social networking efforts and will calculate the ROI of all online community initiatives we lead.
The question "what this blog is doing for us?" comes up on pretty much every meeting with the Senior management and you always think"gee, where do I start?"
I came across a wonderful article about ROI of blogging with a great summary of what blog is doing for you and how you can measure it.
The most common benefits are:

• increased brand visibility
• savings from customer insights
• reduced impact from negative user-generated content
• increased sales efficiency.