Twitter drives referral traffic
Ever wonder about the impact of Twitter on your business? The WebGuild has written a small case study of a business called Coverity which used Twitter as one of their marketing tools. You can read the full piece on their web site. The key takeaway is in this graph:

Overall, Coverity saw a 40% increase in referral traffic in the first 22 days.
And you thought Twitter was for twits!
