The document discusses 5 ideas for marketing in the 21st century:
1. Real-time marketing by leveraging real-time insights, content, distribution, and engagement across channels.
2. Treating everything as media by using all platforms and channels to create new media opportunities.
3. Mobilizing everything by focusing on mobile technologies like hyper-local targeting and behavioral targeting.
4. Betting on Facebook by focusing intense efforts on Facebook, which can provide significant scale and measurable results.
5. Worshipping social data by utilizing the vast amounts of customer data now available from social platforms, loyalty behaviors, and interactions to develop deeper customer understanding.