Selling/Reading books at corporate meetings

In San Francisco Chronicle July 23 2007 an article on growing trend:

Authors lecture in companies and sell books

http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/07/23/DDG3GR3...

Since the fall of 2005, Google has joined several large West Coast companies such as Microsoft, Starbucks and Yahoo in hosting authors for weekly, sometimes daily, book-selling events that were once the sacred realm of bookstores. Although writers have long given lectures at universities and community centers, growing demand for them at the office is forcing publishers to rethink the traditional author tour and inducing booksellers to create ties with the corporate campus next door.