Things you look up, not things you read
Two kinds of reference live here. The network-wide tools only work at the root, because what they do is cross the fields. The field-level pages belong to one subject and sit next to the guides they support.
Across the network
Built at the root. Each one exists because no single field could answer it.
What changes, and when
A dated calendar of US rule changes across law, insurance, money, health, privacy and tech — each row linked to the article and its primary source.
Find an article or a tool
One index over every page on the network, filtered in your browser by site, topic and type. Nothing you type is sent anywhere.
The effective-date list is also published as a calendar feed — .ics, 17 all-day events — so the dates can live in the calendar you already check instead of a page you have to remember.
By field
19 reference pages across 7 sites — tables and calculators that carry the figures behind a guide, with the date each figure was last checked.
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- Non-compete: who can be bound, by state checked 2026-10-05
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- Deductible, coinsurance, out-of-pocket max: what one bill actually costs checked 2026-10-10
- Medicare Part B: the premium, and why yours is not the standard one checked 2026-10-11
- The 15 drugs with negotiated Medicare prices from 2027 checked 2026-10-16
- Claim appeal deadlines: which clock applies to your plan checked 2026-10-13
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- Social Security COLA history: every adjustment since 1975 checked 2026-10-15
- Long-term capital gains: what a gain costs at your income checked 2026-10-11
- RAP vs IBR: what each formula charges on the same income checked 2026-10-18
- HSA contribution limit: 2026, 2027, and a part-year checked 2026-10-11
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- Moon phase on any date: illumination, age and the next four phases checked 2026-11-03
- Sunrise and sunset for sixteen cities, on any date checked 2026-11-03
- Moonrise and moonset for sixteen cities, on any date checked 2026-11-03
- Moon phases by month: the four principal instants checked 2026-11-03
- Eclipses 2026–2035: dates, types and where each one is visible checked 2026-11-03
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- Blood pressure categories: where a reading actually falls checked 2026-10-20
- Sleep by age: the row that applies, and where eight sits checked 2026-10-16
- Caffeine by drink, added up against 400 mg checked 2026-10-25
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- Game subscription break-even, priced as a rental checked 2026-10-08
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- Right to repair: the nine state laws, and what each covers checked 2026-10-08