Your website is only as valuable as the traffic that reaches it. In the last unit you treated the site as your central hub; now the question becomes how people actually arrive there. Two engines drive that: organic search, which you earn, and paid advertising, which you buy. Knowing when to lean on each is what keeps you spending efficiently instead of burning budget.

Start with the core split. Organic search is the unpaid traffic you earn when your pages rank in search results, powered by SEO (search engine optimization). Paid digital advertising is traffic you buy, and it comes in three forms: search ads, display ads, and social media advertising.

The practical difference is timing and durability. Paid ads switch on instantly and stop the moment your budget runs out; you are renting attention. Organic rankings take weeks or months to build, but they compound: a guide that ranks keeps pulling in visitors at no incremental cost per click. So when you need reach right now, for a launch or a seasonal sale, reach for paid. When you want an asset that keeps paying you back, invest in organic.

The mistake to avoid is treating them as either/or. They work best in tandem: paid buys you visibility while your organic rankings are still climbing, and strong organic gradually lowers your dependence on ad spend.

Here is the move that matters most: target keywords by intent, not just by topic. Someone typing "what is a burr grinder" is browsing. Someone typing "best burr grinder under $150" or "buy burr grinder" is close to a decision. Those high-intent searches are the ones worth ranking for, because the traffic they send arrives ready to act.

• Chris: Should we just stuff "coffee grinder" into the page as many times as we can?
• Jessica: No, that's the old way and Google sees through it. Think about what the searcher actually wants. "Coffee grinder" is broad; "best coffee grinder for espresso" is someone ready to buy.
• Chris: So we build the page around that exact phrase?
• Jessica: Around that intent. Match your title, your headings, and the content to the decision they're trying to make, and the ranking follows.

Notice what Jessica does: she reframes SEO away from repetition and toward serving the searcher. That is the whole game. Structure the page so both readers and search engines understand it: a clear title tag with the intent keyword, descriptive headings, and internal links to related pages. Write for the human first, then make sure the structure signals relevance to the engine. Done well, SEO and good writing pull in the same direction.

Paid reach works when each ad type does the job it's built for. Search ads capture active intent: they meet people at the moment they search, so they convert well but are limited to existing demand. Display ads build awareness and, crucially, retarget visitors who left without buying, keeping your brand in front of them as they browse elsewhere. Social media advertising lets you target by interest and behavior, and reach lookalike audiences who resemble your best customers, which is how you create demand rather than just harvest it.

The coordination principle is to assign each channel a distinct role so they reinforce rather than overlap. A practical pattern: social and display generate awareness and feed your retargeting pool, search captures the intent that awareness creates, and your organic content lowers the cost of all of it over time. When you set budget, weigh it toward the channels closest to your objective, not evenly across all three.

The single idea to carry out of this unit: organic earns durable, high-intent traffic while paid buys immediate, targeted reach, and a smart plan uses each for what it does best. Three things sit ahead of you. First, a quick sorting exercise to lock in which traits belong to organic versus paid. Then you'll coach a content writer live on turning a guide into something that ranks for buyers, so try leading with intent rather than keywords. Finally, you'll design a paid campaign you could actually brief to leadership.