Pinboard

 Pinboard  is a silo for hosting bookmarks that you may POSSE to using the WordPress Syndication links plugin.

Features

 * Add bookmarks with URL, title, description, and tags.
 * Each bookmark can be marked as private
 * Each bookmark can be marked as "read later"
 * Add plain text "notes" as bookmarks on pinboard.in without having to save it somewhere as a web page first.
 * title, tags, and note field. Note field supports Markdown
 * Permanently saves copies of bookmarked pages and offers full-text search for additional fee.
 * Can auto-add bookmarks from Instapaper, Readability, Pocket accounts.
 * Can import bookmarks from up to three Twitter accounts
 * Bookmark links contained in your tweets
 * Bookmark links in tweets you favorite
 * Add hashtags as tags
 * Backup your bookmarks in multiple formats
 * XML "same as Delicious v1 API"
 * HTML "legacy Netscape format almost everyone can read"
 * JSON
 * Archived tweets can also be exported in JSON

atomicules
atomicules has gotten POSSE to Pinboard working using Jekyll combined with custom deploy/syndication scripts on atomicules.co.uk since 2015-03-31
 * Original link post: http://atomicules.co.uk/2015/03/31/Cycling-Near-Misses.html
 * Pinboard POSSE copy: https://pinboard.in/u:atomicules/b:c7f8e05271e5

Software

 * WordPress Syndication Links plugin supports POSSEing to Pinboard

Lack of programmatic permalinks
It does not seem possible to obtain the Bookmark ID as a return value when adding a bookmark via the API, thus unclear how to automatically create permalinks to POSSEd posts. This means it isn't possible to add a u-syndication link to the syndicated copy on the original post.

History

 * Many users moved to Pinboard after Delicious announced its supposed shutdown in 2010.
 * Pinboard ultimately acquired what was left of Delicious in 2017.