12 Types of Digital Marketing, Explained Simply

1. Search engine optimization

SEO is the work of making your pages eligible to appear in unpaid search results, which covers the words on your service pages, how the site is built, how fast it loads and who links to you. It suits any business whose customers describe their problem in words, like “water heater leaking” or “bookkeeper for contractors.” Google's Search Essentials describes the core parts of what makes content eligible to appear in Search, then says that “just because a page meets all of these requirements and best practices, doesn't mean that Google will crawl, index, or serve its content.” That sentence is the honest ceiling on any SEO promise you'll be sold, and it's why the order you do the work in matters more than the volume of it.

2. Local SEO and your Google Business Profile

Local SEO aims at the map results and the searches with a place attached, and your Business Profile does most of the work: categories, service area, hours, photos and reviews. Eligibility has a hard edge here. Google's guidelines say “If your business either has a physical location that customers can visit, or travels to customers where they are, you can create a Business Profile on Google,” and that a service area business “can't list a ‘virtual’ office unless that office is staffed during business hours.” A rented mailbox or an unstaffed suite puts the profile at risk, so settle the address question before you work on the profile itself.

3. Paid search

Paid search puts your ad beside the results for searches you choose, and you pay when somebody clicks. It earns its keep on urgent work, where a homeowner types the word emergency and calls the first credible option. The ad format sets the shape of the writing: Google says the headline fields for responsive search ads “support up to 30 characters,” description fields “support up to 90 characters each,” and you can supply “up to 15 headlines and 4 descriptions for a single responsive search ad.” Writing 15 honest headlines about one service is the real job, and the page they land on decides whether any of it pays, so brief the landing page before you write ads.

4. Paid social

Paid social buys attention from people who weren't looking for you, on Facebook, Instagram, TikTok or LinkedIn. It suits work that photographs well and offers with a deadline attached, and it struggles with emergencies, because nobody scrolls while the basement floods. Since the ad sits inside a feed of ordinary posts, the disclosure standard is strict: the FTC's native advertising guide says “An advertisement or promotional message shouldn't suggest or imply to consumers that it's anything other than an ad.” Label the ad, and decide up front where the click lands.

5. Display and retargeting

Display ads are the image ads on other people's sites and apps. Retargeting is the version that shows those ads to people who already visited you, and for a small budget that's where most of the value sits. There's a limit on who you're allowed to follow: Google's restricted targeting policy says advertisers promoting “products and services that fall within sensitive interest categories” are unable to use audiences the advertiser has curated, and that list includes health, negative financial status and religious beliefs. Mold, medical and debt related services should read the policy before anyone builds an audience.

6. Email marketing

Email is the one channel where you keep the list. It fits repeat work and quotes that are still sitting unanswered, and it costs very little once the list exists. The rules are federal and specific: the FTC's guide to the CAN SPAM Act says “The subject line must accurately reflect the content of the message,” that “Your message must include your valid physical postal address,” and that you must honor an unsubscribe request “within 10 business days.” The same guide says your unsubscribe mechanism has to keep working for at least 30 days after the message goes out, so use a real address and a working link from the first send.

7. SMS marketing

Texting reaches people in minutes, which makes it useful for appointment reminders and quote follow up, and risky the moment it's used for blasts. Consent governs everything here. The FCC's 2024 robocall and robotext order says consumers “can revoke consent under the TCPA through any reasonable means,” and requires senders to honor that revocation within a reasonable time, capped at 10 business days from receipt. Business texting in the United States also runs through A2P 10DLC registration, and a campaign can come back rejected before it ever sends. Ours was rejected on the first submission, and we resubmitted it.

8. Content marketing

Content marketing is publishing what a buyer wants before they're ready to buy: how a repair actually works, what a fair quote includes, what a job like theirs runs and where it goes sideways. It fits considered purchases where people research for weeks. Google's guidance on helpful content is blunt about motive: if the reason you're publishing is that you're “primarily making content to attract search engine visits,” Google says “that's not aligned with what our systems seek to reward.” The practical version is to write down the ten questions you answer on every sales call and publish those answers with your own numbers in them.

9. Video marketing

Video suits work that looks like something: a roof tear off, a finished kitchen, a flooded crawlspace being dried out. Short clips carry social feeds, and longer ones do the explaining. If you want the video to show up in Search, Google's video guidance sets a prerequisite most owners skip: “The watch page must be indexed. The indexed watch page must be performing well in Search before its video can be considered for indexing.” So give each video its own page with real text around it, the way you'd turn project footage into a service page.

10. Affiliate and referral marketing

This is paying other people for the customers they send you: a plumber who passes along water damage jobs, or an online partner earning a cut of the sale. It fits trades that already share customers, and it grows slowly on purpose. The FTC's endorsement guides say that where there's a connection between an endorser and the marketer “that a significant minority of consumers wouldn't expect and it would affect how they evaluate the endorsement, that connection should be disclosed clearly and conspicuously.” Put the terms in writing, and tell the partner to say out loud that they're paid.

11. Reviews and reputation

Reviews decide whether the person who found you actually calls, so treat them as part of your sales process and build the ask into the closeout of every job. The FTC's 2024 rule on fake reviews prohibits businesses from “providing compensation or other incentives conditioned on the writing of consumer reviews expressing a particular sentiment, either positive or negative.” You can ask every customer for a review, and you can't attach a gift card to a five star one. Answering the hard reviews in plain language does more for the next reader than the star average does.

12. AI search, also called AEO

AI search covers the answers written above the links in Google and the recommendations people get from assistants. Owners keep getting sold a separate product for this, so read Google's own page on AI features: “There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary,” and to be a supporting link “a page must be indexed and eligible to be shown in Google Search with a snippet.” Google adds that you don't need to create new machine readable files or markup. The work is your existing pages, written to answer the long questions people type, which is what AEO actually means.

Effort below means the work to get a first version live and producing something you can read, assuming one owner or one part time marketer is doing it. The first move is deliberately small, because every one of these dies in the planning stage more often than in the market.

Choose the two that match how your customers already behave, then give them a full quarter before you judge either one. Urgent work that ends in a phone call argues for local SEO and paid search. Work people plan for months argues for content and email. Everything else on the list is a decision for next year, once you can say what the first two cost you per booked job.

Do the arithmetic before you buy anything. Say your average job brings $900 in gross profit and you close one quote in four. Those four quotes are worth $900 between them, which makes a single quote worth $225 before you've spent a dollar getting it. Any channel that produces a quote for less than that is worth keeping, and anything above it needs a better close rate or a bigger average job. The lead cost calculator runs that math with your own numbers, and it'll tell you quickly which of these 12 types you can afford this year.

Whichever pair you choose, your own pages carry all twelve of them, because ads land on those pages and AI answers quote what's written on them. If you want a read on what shape yours are in before you commit a budget, the free site audit checks what search engines and AI answers can actually read on them.