HIPAA: the 1996 US law governing protected health information, which decides what health signals may legally reach an advertising platform, and on what terms.

Millennials are the demographic cohort born 1981 to 1996, aged 30 to 45 in 2026. How a label built to mean young consumers now describes middle-aged buyers.

Baby Boomers are the demographic cohort born 1946 to 1964, aged 62 to 80 in 2026. Why 16 of their 19 birth years land inside one open-ended targeting bracket.

Four metrics now judge each merchant-fulfilled listing alone, and a warning email arrives first. Sellers dispute the notice period and what temporary means.

Boeing led with 771,000 mentions in AI answers yet reached no cited-source list. AI Overviews now cover 57% of the sector's search volume. Who earns the click?

Council stripped Article 88b on 18 June, leaving publishers and ad tech waiting on Parliament. Coalition wants signals binding per controller and per purpose.

Google's John Mueller acknowledges that Search Console's AI search reporting falls short in providing the position data SEOs need.

Complaint names LiveRamp, Experian, Acxiom, DV360 and The Trade Desk as data recipients. Second US state action in four months. What changes for CTV buyers?

Twelve CSS firms handling 74% of third-party clicks in the EEA wrote to Brussels on 8 September. Does the 25 September deadline leave room for live testing?

Product listing ads are adverts built by the platform from a merchant's product record, showing image, price and shop name. How they work and who controls them.

Comparison shopping service: the intermediary a merchant must use to place Google Shopping ads across 21 European countries, created by a 2017 antitrust ruling.

Weekly one-page LinkedIn posts follow a ranking of 100 names by follower count, 79.1K at the top and 1.4K at the bottom. Can recognition move past raw reach?

Practitioner: the person who operates advertising systems rather than builds or sells them. Where the label came from, who qualifies, and why it decides things.

Follower count is the number of accounts subscribed to a profile's posts. How platforms calculate the figure, where it gates access, and why buyers discount it.

Master services agreement: the umbrella contract governing advertiser, agency and vendor relationships. What it contains, who audits it, and where it breaks.

German buyers can now push best for planning survey segments into Hawk as map polygons averaging 500 households. Whether rivals match the grid remains open.

Nineteen languages and five Footballco titles sit inside a renewal begun in 2023, and header bidding now runs beside Feed. What does the pairing pay publishers?

Header bidding lets publishers offer one impression to several exchanges at once, before the ad server decides. Its mechanics, origins, numbers and disputes.

Ex-TAC gross profit is revenue less payments to publishers, the non-GAAP measure ad tech companies report in place of gross profit. How it is built, and why.

A supply path is the route a bid request takes from an ad slot to a buying platform. How the intermediaries are recorded, what hops cost and why routes differ.