Automating passive income online involves creating systems or leveraging tools that generate consistent earnings with minimal ongoing effort. Common methods include developing digital products like e-books, courses, or software that can be sold repeatedly, setting up affiliate marketing with websites or blogs, or creating ad revenue streams via YouTube or other platforms. Investments in dividend stocks, peer-to-peer lending, or crypto staking can also be automated using financial tools. Success requires initial time, effort, or investment to establish these systems, but once set up, they can generate ongoing income with periodic maintenance.