How do I discover trending topics?

How do I discover trending topics is mainly about monitoring changes in search interest, social discussion, news, products, investment, regulation, and customer questions. A reliable approach is to use Google Trends, news sources, social listening, newsletters, communities, marketplaces, keyword tools, and competitor monitoring. For example, a useful trend should be relevant to the audience, sustained enough to matter, and connected to a strategic or commercial implication. The main caution is that short-lived spikes and attention without customer behavior or spending can be mistaken for real trends. The final output should provide a trend register covering velocity, duration, geography, drivers, audience, evidence strength, and likely impact.