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Ideariff alternatives & similar sites

IdeaRiff Research – Riffing On Ideas — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Economy →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
adamsmith.org ↗	55 match shared topic	Adam Smith Institute \| Free Market Think Tank	United Kingdom~ en	economy Squarespace Magento	robotsllmsaihumans	emailphone	none
yanisvaroufakis.eu ↗	55 match shared topic	Home - Yanis Varoufakis	European Union en	economy WordPress	robotsllmsaihumans	emailphone	none
nber.org ↗	38 match shared topic	National Bureau of Economic Research \| NBER	en	economy Drupal	robotsllmsaihumans	email phone	none
repec.org ↗	38 match shared topic	RePEc: Research Papers in Economics	en	economy	robotsllmsaihumans	emailphone	none
newamerica.org ↗	38 match shared topic	New America - Big Ideas and Bold Solutions	en	politics WordPress	robotsllmsaihumans	emailphone	partial · 8
quillette.com ↗	38 match shared topic	Quillette \| Ideas That Matter	en	politics Ghost	robotsllmsaihumans	emailphone	none
uneca.org ↗	38 match shared topic	United Nations Economic Commission for Africa \| Ideas for a prosperous Africa	en	economy Drupal	robotsllmsaihumans	emailphone	none
everytownresearch.org ↗	38 match shared topic	Home \| Everytown Research & Policy	en	politics WordPress	robotsllmsaihumans	emailphone	none
oxfordbusinessgroup.com ↗	38 match shared topic	Economic Research & Foreign Direct Investment Analysis - Oxford Business Group	en	economy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
calbudgetcenter.org ↗	38 match shared topic	Public Policy Research, Budget and State Tax Analysis - California Budget & Policy Center	en	politics WordPress	robotsllmsaihumans	emailphone	none
iwpr.org ↗	38 match shared topic	Home - Institute for Women’s Policy Research	en	politics WordPress	robotsllmsaihumans	emailphone	none
capitalresearch.org ↗	38 match shared topic	Capital Research Center	en	politics WordPress	robotsllmsaihumans	emailphone	none
liser.lu ↗	38 match shared topic	Luxembourg Institute of Socio-Economic Research I LISER	Luxembourg en	economy	robotsllmsaihumans	emailphone	none
asiatimes.com ↗	37 match shared topic	Asia Times \| Independent News for Asia & the World	en	economy WordPress WooCommerce	robotsllmsaihumans	emailphone	none
eastasiaforum.org ↗	37 match shared topic	Analysis from world leading experts \| East Asia Forum	en	politics WordPress	robotsllmsaihumans	emailphone	partial · 8
phenomenalworld.org ↗	37 match shared topic	Phenomenal World	en	politics WordPress	robotsllmsaihumans	emailphone	none
rooseveltinstitute.org ↗	37 match shared topic	The Roosevelt Institute	en	economy WordPress	robotsllmsaihumans	emailphone	none
georgiatrend.com ↗	37 match shared topic	Georgia Trend Magazine - Georgia Business, Politics and Economic Development	en	politics WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.