Guardrails are controls placed around an AI model or agent that check inputs, outputs and actions against set rules, and block what falls outside that policy.

An approval threshold is the limit above which a software agent or employee must get human sign-off before acting, such as a spend cap on an ad buying agent.

Least-privilege access limits each user, program or AI agent to the minimum permissions a task needs, a 1975 principle now applied to ad accounts and AI agents.

Supervised fine-tuning trains a pretrained model on labelled prompt-and-answer pairs so it follows instructions, the first post-training step behind chatbots.

Imitation learning trains an AI system to act by copying recorded examples of experts doing a task, the method behind self-driving, robot and chatbot training.

In-context learning is a language model's ability to pick up a task from examples or instructions in its prompt, with no retraining. How it works and fails.

Amazon let outside stores list in its search for free, bot protection turned away an AI agent at 29 of 200 retailers and Google AI Mode began booking plumbers.

Make AI visibility budgets defensible with AMEC's data quality checks, tests against customer behavior, and brand measures like recall and consideration.

Match types, negatives, keyword bids, and impression share – here's what carries over from Google Ads for a paid search team and what doesn't.

Google says Gemini's Business Profile tools are coming to Workspace accounts and moves the Maps Message button. Its help page no longer lists region limits.

Roku holders get $95.30 in cash plus 0.9799 FOX shares each as Roku leaves Nasdaq. FOX now targets $400m in cost savings, but will Roku stay open to rivals?

Small advertisers' CTV platform guides Q4 revenue to $75m-$78m, below 2025's $87.1m. New CEO Tony Weisman, a former Dunkin' CMO, inherits a sales realignment.

Spotify climbed to 39% of Austrian online audio users from 33% in 2023 as reach hit 93%. Podcasts stalled at 42% for the first time - who stopped listening?

Advertisers disagree: only 24% cut spend over war damage and 64% raised Q3 budgets. Which channels survive the next round of cuts, and why does search lead?

Brussels wants viewing time dropped as a TikTok ranking signal, which shapes reach for creators and brands. Third finding of 2026: what comes before a fine?

Viewers past three free weekly hypes can redeem Jewels, paying YPP channels of 500 to 500,000 subscribers in Rubies. What does a hype cost, and who keeps what?

Prompt data and rival rankings stay hidden from businesses that verify ownership, for example via a Shopify store. Does it match Glenn Gabe's 2025 wishlist?

Small standard items above $50 pay $0.70 more per unit, while books and car parts lose low-price rates. Which oversize products pay less from January 15, 2027?

Fines of up to $50,000 per affected minor start January 1, 2027, plus deletion of under-16 accounts served such feeds. What does Section 230 add to the case?

Under-18 accounts already default to 60 minutes a day on TikTok; SB 976 adds parental consent for personalized feeds. Will the Ninth Circuit reverse the ruling?

The New York Times says Brave copied 30 billion pages and sold them to AI companies. Your website is probably in that index.