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What is the Difference Between Inbound and Outbound Marketing?

Outbrain

Outbound marketing includes TV ads, billboards, cold calling, and display ads, while inbound relies on slow-burn content marketing, such as blogs, opt-in email nurture flows, and native recommendations. Out-of-Home (OOH) advertising, including billboards , is on the rise, expected to reach over $42 billion worldwide by 2024.