google-search: Difference between revisions
(separated out from search-engines page to expand and provide more extensive documentation) |
(blog post noting problems with rich-snippets RDFa docs/implementation) |
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[http://google.com/ Google.com] supports [[rel-nofollow]] (since 2005(?) citation needed) and as of 2009-05-12, [[hCard]], [[hReview]], [[hreview-aggregate|hReview aggregate]], [[hProduct]] in [http://www.google.com/support/webmasters/bin/answer.py?answer=99170 rich snippets] in search results. | [http://google.com/ Google.com] supports [[rel-nofollow]] (since 2005(?) citation needed) and as of 2009-05-12, [[hCard]], [[hReview]], [[hreview-aggregate|hReview aggregate]], [[hProduct]] in [http://www.google.com/support/webmasters/bin/answer.py?answer=99170 rich snippets] in search results. | ||
See [[google-rich-snippets-examples]] for documentation of Google's microformats examples (along with a few corrections/improvements). | See [[google-rich-snippets-examples]] for documentation of Google's microformats examples (along with a few corrections/improvements). See [http://www.jenitennison.com/blog/node/104 Jeni's blog post on What’s wrong with Google's RDFa Support] for a description of the numerous problems in the *RDFa* documentation/implementation of "rich snippets". ([[to-do]] extract these instances of real world problems, analyze for causes, and note principles and techniques for avoiding them in the future.) | ||
== advanced search == | == advanced search == | ||
Revision as of 18:31, 22 August 2009
<entry-title>Google Search</entry-title>
Google is one of several search-engines that index and support microformats.
main search
Google.com supports rel-nofollow (since 2005(?) citation needed) and as of 2009-05-12, hCard, hReview, hReview aggregate, hProduct in rich snippets in search results.
See google-rich-snippets-examples for documentation of Google's microformats examples (along with a few corrections/improvements). See Jeni's blog post on What’s wrong with Google's RDFa Support for a description of the numerous problems in the *RDFa* documentation/implementation of "rich snippets". (to-do extract these instances of real world problems, analyze for causes, and note principles and techniques for avoiding them in the future.)
advanced search
Through additional user interfaces:
- Google Advanced Search - Usage rights supports rel-license (since 2005(?) citation needed)
search APIs
Google provides search APIs like:
- Google Social Graph API supports XFN (launched 2008 February). See "Google Social Graph API How are your sites connected?".