Here are three free and easy ways to keep track of what people might be saying about you online:

Google Alerts send you emails when Google finds new results on the web about you (or whatever search term you define).

Mention.com emails you an alert when it finds content about you on the web or on social media (this is a premium service but it also offers a free basic version).

Socialmention.com – a realtime social media search engine.

Use one or all of these services so that if there are people talking about you, you can engage with them and join in on the conversation.