The site is free to readers
PhysicsTheories.com uses advertising to support hosting, maintenance, and ongoing expansion of the educational library. Ads should fund the work without crowding out the work.
Every ad area is marked
Advertising containers are labeled as advertisements and visually separated from the article, lesson, or revision material surrounding them.
Ads do not choose the curriculum
Educational coverage is not determined by ad fit, trend chasing, or attempts to create artificial page volume. Editorial usefulness comes first.
No disguised ad copy
The site does not blur the line between educational explanation and commercial messaging. Sponsored language must never masquerade as part of a lesson.
No ad-first page design
Pages are written and structured around content usefulness. Ad slots are secondary and placed in predictable, non-deceptive positions.
No clickbait padding
Thin placeholders, empty category pages, or fake publishing volume weaken reader trust and are contrary to the site's publishing goals.
Reader control matters
Policy, privacy, contact, and correction pages stay visible so readers can understand how the site operates beyond the content itself.
How ad placement is handled on this site
Before or between sections, not inside key explanations
Ads may appear near section breaks or between major content blocks, but not in ways that interrupt formulas, examples, or explanation flow mid-thought.
Labeled containers only
Ad units live inside clearly styled containers so readers can distinguish them from the editorial surface instantly.
No pressure language around ads
The publication avoids manipulative copy that tries to trick users into treating an ad like a navigation link or recommended lesson.
Transparent privacy handling
Reader questions about cookies, personalized advertising, and data use are addressed in the privacy policy.
Opt out of personalised ads
If you prefer not to receive personalised advertising based on your browsing history, you can adjust your preferences at any time via Google's Ads Settings or through the Digital Advertising Alliance opt-out tool. Non-personalised ads may still be shown to support the site.
Ads should never make a science site feel cheap.
Educational trust is difficult to earn and easy to lose. The standard on this site is simple: if a monetization choice makes the content harder to read, harder to trust, or harder to navigate, that choice should not ship.
Need clarification?
If you are unsure whether a placement, label, or disclosure is clear enough, contact contact@physicstheories.com and include the page URL.
Advertising quality standard
Advertising is allowed only where it does not overwhelm the educational purpose of the page. The approved inventory list limits ads to pages that have passed the content audit or have been expanded into substantial hub pages. Thin generated pages, placeholder pages, search pages, admin pages, and one-off numeric permutations are excluded from advertising surfaces.
This standard protects readers and advertisers at the same time. Readers should land on a page because it answers a real question; advertisers should not be placed beside pages that exist only to create more ad impressions.
Inventory controls
The approved inventory file is the operational source of truth for ad eligibility. If a page is not approved, it should not display ad placeholders, should not be listed in the sitemap, and should not be presented as a monetized landing page. This reduces accidental policy risk when new generated pages are added later.
Review cadence
Advertising eligibility should be reviewed whenever large batches of pages are generated, imported, or rewritten. A page can be useful for navigation or practice without being appropriate for ads. The site now treats those as separate decisions: publication, indexing, and advertising each require a deliberate quality check.