1. The document discusses how businesses can use various Web 2.0 applications like social networks, blogs, video sharing sites, and image sharing sites for marketing purposes.
2. It provides specific recommendations for businesses to create a presence on sites like Facebook, Twitter, YouTube, Flickr, and blogs to engage customers and create "viral marketing".
3. The document stresses the importance of including customers by using their feedback, comments, photos and videos to build trust and a sense of community around the business or its products/services.