Google Inc. on Thursday launched an online application that allows multiple users to create and edit websites. The company said the service, called Google Sites and part of the company’s Google Apps package of online software, will help people without technical savvy create simple, easy-to-use websites they can share with co-workers, classmates or friends. Users will be able to centralize information from other Google products, such as videos from YouTube, pictures from Picasa, or documents from Google Docs. The application also requires no knowledge of HTML or web…