Portable Linked Profiles enable individual entities to own their own Linked data profiles in a standardised way that facilitates matching and searching of skills and services - github 
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The information contained in a profile is intended to be public information. That means your contact data, interests, the projects you participate on, the company you work for etc.
VIMEO 610179 DataPortability gathers existing open standards into a blueprint for a social, open, remixable web where your online identity, media, contacts and content can follow you wherever you go. Find out more at dataportability.org
Developers
These applications can be listings, directories or whatever service making use of this information. Thanks to it's modularity, coders can easily create applications on top of PLP Profiles. You might want to take a look at the documentation if you want to discover which services use PLP - allmende.io