To assess the expenses associated with operating YouTube, we can categorize the costs into several segments: Infrastructure (servers, data centers, networks, etc.): As the parent company of YouTube, Google possesses a vast infrastructure, and it is likely that YouTube represents a significant portion of this. Assuming YouTube utilizes approximately 10% of Google's infrastructure capacity, and considering that the maintenance cost of Google's cloud services is estimated at around $10 billion annually, it follows that YouTube's share would be about $1 billion each year. Personnel Costs: YouTube requires a workforce for various functions, including system maintenance, algorithm development, customer support, among others. If we assume an average salary of $100,000 for a workforce of 10,000 employees, the total personnel expenditure would approximate another $1 billion per year. Other Expenses: This category may encompass overhead for office space, marketing and advertising, research and development, legal fees, etc. I would estimate these costs to be roughly equivalent to the Infrastructure expenses, contributing an additional $1 billion. In summary, by making rough calculations, the annual operational cost of YouTube could be around $3 billion or more.