It’s not all about differences – there are also similarities between paid and organic search:
Keyword research: You use a search engine for both paid and organic search, and both require a user to enter a keyword. So you need to do keyword research for organic search and paid search.
Landing pages: Both types of search require you to create great landing pages. For SEO, the landing page needs to be connected to your website. For paid search, it can be the exact same landing page you use for organic, or it can be a completely separate stand-alone page that sits on your website.
Traffic: Generating traffic is a major goal of both paid and organic search. Most importantly, both paid and organic search traffic include user intent. That is, someone is asking Google a question or searching for information – they are in an active mindset and as a result they are more likely to take action once they find this information.