The document discusses the pros and cons of pay-per-click (PPC) advertising and search engine optimization (SEO). PPC advertising allows for immediate results and total control over ad placement but costs money per click. SEO takes longer to see results but clicks are free. The document provides tips for effective PPC campaigns, on-site SEO, and landing page design to improve click-through rates and user experience. Search engine marketing (SEM) combines PPC and SEO strategies.
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