search engines

Search engine implementations that index microformats across the web (i.e. not just on their own site).

web search

General web search. Search engines that index websites in general using microformats.

Google

Google.com supports rel-nofollow, hCard, hReview, hReview aggregate, hProduct (since 2009-05-12 for rich snippets), hCalendar (since 2010-01-22), hRecipe (since 2010-04-13) - in main search. See also related blog post on hCalendar hRecipe support and hMedia (since end of 2012).

Through additional interfaces Google supports rel-license ( Google Advanced Search - Usage rights), and XFN (e.g. rel=me support). See google-search for more details.

Microsoft

Main article: bing-search

Microsoft's Bing.com supports hCard, hReview, hReview aggregate, hProduct, hCalendar, and hRecipe in main search, per Bing Help: Marking up your site: Overview.

Yandex

Main article: yandex-search

Yandex supports hCard, hRecipe, hReview, and hProduct([1]) and has a microformats validator as well. See yandex-search for more details.

previous search engines

Some search engines (or search engine backends) are no longer up and running, but when they were, they supported microformats:

Yahoo

Yahoo search supports rel-nofollow. Through additional interfaces, Yahoo supports rel-license (Yahoo Creative Commons search) and hCard, hCalendar, hReview, XFN, geo, rel-tag, adr through Yahoo Search BOSS and Yahoo Search Monkey. See yahoo-search for more details.

VIREL

VIREL (~2008-2010? http://virel.de/, site no longer does search as of 2011-222) indexes both hCard and hCalendar and provides a user interface (pop-up menu) to choose between searching contacts or events.
- 2008-09-09 Tag Edge: http://tagedge.com/2008/09/09/virel-microformats-search-engine/ (post permalink broken) Virel: Microformats Search Engine

socialsearchme

singpolyma social web search (xfn, hCard) part of the diso project.
- memorable URL: http://socialsearchme.com/
- e.g. try a search for Jeremy
- 2008-08-19 DiSo Gets Search - blog post announcing it!

to do

both socialsearchme.com/?q=b and socialsearchme.com/b should redirect/retrieve scrape.singpolyma.net/profile/?q=b.

previous blog search

Search blog posts and blogs in general. Search engines that specifically index blogs, blog posts, and other realtime sources on the web using microformats.

Technorati

Technorati (rel-nofollow)
- Technorati Tag Search supports rel-tag (to search for blog posts tagged with rel-tag).

Technorati Kitchen

Technorati Kitchen (~2006-2010? http://kitchen.technorati.com unavailable as of 2011-222)
- Technorati contacts search] (hCard, http://kitchen.technorati.com/contacts/search/)
- Technorati events search] (hCalendar, http://kitchen.technorati.com/events/search/)

IceRocket

IceRocket through additional interfaces
- IceRocket Tag search support rel-tag (to search for blog posts tagged with rel-tag).

previous search results in microformats

Search engines that publish microformats in their results (but may not necessarily be indexing microformats).

Karniyarik

Karniyarik Vertical Search Engine for Online Products (Stealth Beta was at http://www.karniyarik.com/karniyarik-web). Karniyarik's search results lists products and their vendors, which are marked up with hCard (e.g. search results for bebek bezi - diapers). In addition, Karniyarik's about page is marked up with hCard.