The document discusses three converging trends - content marketing, cause marketing, and social media - that are impacting job searches in the 21st century. It provides examples of how each trend can be used for networking and finding jobs, such as becoming an expert in your field by creating content and sharing it online, engaging with causes to build social capital, and using social media tools like LinkedIn, Twitter and Facebook to expand your network. The document advocates combining these trends, such as through content marketing on social media, to more effectively search for and create job opportunities in today's environment.