Fall Renovations: Explore Costs for Refinishing Concrete Driveways - San Francisco Chronicle http://news.google.com/news/url?sa=t&fd=R&usg=AFQjCNEqzBX88rUeutAICqcfSQxkiNqHHg&url=http://www.sfgate.com/cgi-bin/article.cgi?f%3D/g/a/2010/10/29/prwebprweb4713144.DTL