The most basic definition of customer service is how well you meet your customer’s expectations.  If you meet their expectations, that's good. If you fall short of their expectations, that's bad. If you exceed their expectations, that's great.

Telling your customers up front what they can expect from you is a great way to avoid disappointments and misunderstandings.  That’s why I can’t figure out why so few companies in my social media experiment are clear about why they are using Facebook and Twitter.

Facebook was a total strikeout.  Nobody in my experiment explicitly states “here’s what you can expect from us on Facebook”.  Best Buy comes the closest with a set of ‘House Rules’ that you have to scroll down the page to find:

Twitter is a little better.  Here you can see the difference between Best Buy (clear purpose) and Starbucks (some guy named “Brad”):

As always, your comments and suggestions are very much appreciated!