Here's a short list of media outlets that have featured a story on Andy Wilson.
Nick Bastone wrote an article for the Six Fifty (an online magazine of things to do on the San Francisco peninsula). There are some great pictures by Amar Dhillon.
Julia Scott wrote about Andy Wilson's barn dance. This article was published in the San Mateo County Times and San Jose Mercury News.
Angela Hill wrote about Pie Ranch for the Oakland Tribune, with a nice review of Andy Wilson's barn dance.
John Green of the Bay Area News Group took these photos at Pie Ranch, with several nice action shots of Andy Wilson calling dances and barn dancers having fun.
The San Francisco ABC affiliate, Channel 7 News, ran a piece on Pie Ranch with a short bit about Andy Wilson's barn dance. This includes video footage and a written transcript.
The San Jose Mercury News featured Andy Wilson's barn dance in this article highlighting Bay Area adventures and destinations. Scroll down about 3/4 of the page to find it, or just search for "barn dance."
Sunset Magazine featured Andy Wilson at least twice, but I cannot find the pages on their web site.