rel-tag-spaces
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This is a list of "name spaces" suitable for use in tagging, and by the rel-tag microformat. Please feel free to add to it, in alphabetical order.
A9
- One word - http://a9.com/microformats
- Multi-word - http://a9.com/source+code (plus sign)
Amazon.com
- One word - http://www.amazon.com/tag/horror
- Multi-word - http://www.amazon.com/tag/science%20fiction (%20, browsers will auto-encode a space into this)
- (note - not valid for amazon.co.uk)
del.icio.us
- One word - http://del.icio.us/tag/dog
- Multi-word - http://del.icio.us/tag/german_shepherd (underscore)
Discogs
(for musical artists)
- One word - http://www.discogs.com/artist/Genesis
- Multi-word - http://www.discogs.com/artist/Jimi+Hendrix (plus sign)
eBay
- One word - http://search.ebay.com/door
- Multi-word - http://search.ebay.com/door-mat (hyphen)
- International - http://search.ebay.co.uk/door (etc.)
Flickr
- One word - http://www.flickr.com/photos/tags/key
- Multi-word. Flickr allows all of the following, and treats them as "keyhole":
- http://www.flickr.com/photos/tags/key_hole (underscore)
- http://www.flickr.com/photos/tags/key-hole (hyphen)
- http://www.flickr.com/photos/tags/key+hole (plus)
- http://www.flickr.com/photos/tags/key=hole (equals)
- http://www.flickr.com/photos/tags/key*hole (asterisk)
- http://www.flickr.com/photos/tags/key.hole (stop)
More on this "tag-cleaning" behavior and Flickr's note on tag-cleaning.
HashTags
Tags for Twitter posts, but also suitable as a general target for tagged links:
- One word - http://hashtags.org/tag/microformats/
- Multi-word - tbc
ISBN
For ISBN codes, e.g. 0-9507881-2-0:
- Talis (note: no hyphens)
- ISBN-10 - http://cenote.talis.com/isbn/0950788120
- ISBN-13 - http://cenote.talis.com/isbn/9780950788128
- Wikipedia
- WorldCat
ISSN
For ISSN codes, e.g. 0007-0335
- WorldCat - http://worldcat.org/issn/0007-0335 (hyphen mandatory)
Journa-list
- One word - http://www.journa-list.com/tags/letters
- Multi-word - http://www.journa-list.com/tags/royal+mail (plus sign)
Last.FM
- One word - http://last.fm/music/Radiohead
- One word - http://last.fm/music/Radiohead/Amnesiac
- Multi word - http://last.fm/music/Florence+and+the+Machine (plus sign separator)
Technorati
- One word - http://technorati.com/tag/cheese
- Multi-word - http://technorati.com/tag/apple+pie (plus sign)
Wikipedia
- One word - http://en.wikipedia.org/wiki/sugar
- Multi-word - http://en.wikipedia.org/wiki/brown_sugar (underscore)
Issues (Wikipedia)
- Case sensitivity (http://en.wikipedia.org/wiki/Perry_Barr works; http://en.wikipedia.org/wiki/perry_barr does not)
- Caution should be exercised when using Wikipedia as a name-space. For example, an article about Birmingham, Alabama, tagged with a link to http://en.wikipedia.org/wiki/Birmingham would link to an article about Birmingham, England.
Wikitravel
For place names.
- One word - http://wikitravel.org/en/London
- Multi-word - http://wikitravel.org/en/East_Grinstead (underscore)
Issues (Wikitravel)
- A tag using, e.g. http://wikitravel.org/en/Newcastle will link to a disambiguation page.
Yedda
For Questions & Answers:
- One word - http://yedda.com/questions/tags/technology
- Multi-word - http://yedda.com/questions/tags/home+improvement (plus sign)
For people (by interest):
- One word - http://yedda.com/questions/tags/technology
- Multi-word - http://yedda.com/people/tags/web+2.0 (plus sign)
Related pages
- rel-tag
- rel-tag-faq
- See also rel-faq
- rel-tag advocacy - encourage others to use rel-tag.
- rel-tag-spaces - sites suitable as using as targets for rel-tag links.
The rel-tag specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.
- rel-tag-feedback - general feedback (as opposed to specific issues).
- rel-tag-issues - specific issues with the specification.
- rel-tag-other-evidence - tagging schemas other than those used in rel-tag