Online advertising has come a long way from the first banner ad, but the lessons it taught us still shape how good B2B paid media works today. Every era of online advertising solved one problem and created the next — and the through-line is a steady move from buying attention to buying intent, which is exactly where B2B teams should be playing now. Here's the short version of how we got here, and the practitioner's read on what each shift means for the way you spend today.
How did online advertising actually start?
It started with the banner ad — buying space on a page and hoping the right person saw it. The earliest online ads borrowed the print model: pick a website with a relevant audience, pay for a banner, and measure success by impressions and clicks. It worked at first because the format was new and people clicked out of curiosity. But it was a blunt instrument — you were renting attention from a publisher, with almost no idea whether the person who saw your ad was actually a buyer. That gap, between "someone saw it" and "the right someone saw it," is the problem every later era tried to close.
What changed with search and social advertising?
Search let you advertise to intent, and social let you advertise to identity — both far sharper than buying page space. Search advertising was the first real leap: instead of guessing who might be interested, you showed up exactly when someone typed what they wanted. That's intent — the most valuable signal in advertising, because the person has already told you what they're looking for. Social platforms then added the other half: rich targeting by who someone is — their role, industry, interests, and company. Worked example: a B2B vendor that once bought banners on an industry site could now show one ad to people searching "CRM migration help" and a different ad to marketing directors at mid-size SaaS firms — same budget, far less waste.
Why does this history matter for B2B paid media now?
Because B2B buying is slow, considered, and made by committees — so the channels built for impulse don't fit, and the ones built for intent and identity do. A consumer might see an ad and buy in minutes; a B2B buyer sees an ad, ignores it, researches for weeks, and brings three colleagues into the decision. That means measuring a B2B campaign by clicks — the old banner-era metric — tells you almost nothing. What matters is whether your spend reaches the right accounts and moves them toward a conversation. The history points the way: lean into platforms where you can target by intent (what people are searching) and identity (who they are and where they work), and judge success by pipeline, not clicks. Worked example: a campaign that drives 500 cheap clicks from the wrong audience is worse than one that drives 20 clicks from in-market decision-makers — the second fills your pipeline, the first fills a report.
What should a B2B team actually do with all this?
Match the channel to the buying stage, target intent and identity over raw reach, and measure against pipeline, not vanity metrics. Use search to capture people actively looking. Use professional networks to reach specific roles at specific companies. Connect every campaign to your CRM so you can see which spend turns into real opportunities, not just clicks. The platforms have changed; the principle hasn't — the closer you can get to advertising at the moment of intent, to the people who actually decide, the better your money works. That connection between ad spend and real pipeline is the core of how we run paid media.
The IV-Lead take
The history of online advertising is really the history of getting closer to the buyer — from renting page space, to catching intent in search, to targeting identity on social. For B2B, that arc has a clear lesson: stop optimizing for the cheap clicks the banner era taught us to chase, and start optimizing for reaching the right accounts at the right moment, then proving it in pipeline. The teams that win in paid media today aren't the ones spending the most; they're the ones whose spend is tied to intent, identity, and revenue.
Want your ad spend tied to pipeline instead of clicks? Book a 30-minute portal audit — we'll look at where your paid media is reaching the wrong audience, and what to change. For the bigger picture, see how we run paid media.
Frequently asked questions
What was the first form of online advertising?
The banner ad — paid space on a web page, sold by impressions and clicks. It was effective at first because the format was novel, but it gave advertisers almost no control over who actually saw the message.
What's the difference between intent and identity targeting?
Intent targeting reaches people based on what they're actively searching for, while identity targeting reaches them based on who they are — role, company, industry. B2B campaigns usually combine both: catch active searchers and reach the specific decision-makers you sell to.
Why don't clicks matter much for B2B advertising?
B2B purchases are slow, high-consideration, and made by committees, so a click is a weak signal. What matters is whether spend reaches the right accounts and moves them toward a conversation — which is why pipeline, not clicks, is the metric that counts.
Which channels are best for B2B paid media?
Search for capturing active intent and professional networks for reaching specific roles at target companies tend to do the most work. The right mix depends on your buyer and sales motion — the constant is connecting every channel back to your CRM and pipeline.