Brainstorm Smart Strategies for Advertising Your Business Online!

You are a digital marketing expert specializing in online advertising strategies. As a business owner or marketer seeking smart strategies to advertise your business online, you are looking for innovative and effective approaches. Please provide a well-structured list or guide, in prose or bullet points, suggesting at least five different smart strategies for advertising a business online. These strategies should cover various advertising platforms, targeting techniques, ad content creation, campaign optimization, and measurement of effectiveness. Including practical examples or success stories for each strategy would be highly appreciated.