File under: library data in The Wild–
The Wikipedia community has approved the automated addition of links to VIAF in Wikipedia articles. The proposal was spearheaded by the OCLC Wikipedian in Residence, Max Klein and the British Library Wikipedian in Residence, Andrew Gray. There’s a video summary of the proposal YouTube.
Approximately 4,000 Wikipedia author articles already link to VIAF. See the article on Mark Twain (scroll down to the bottom of the page to see links to VIAF as well as links to the German National Library’s authority file (PND), LCCN, and WorldCat Identities. The VIAF record for Mark Twain links back to Wikipedia (expand the About box).
The supporting and opposing comments in on the request for comments page are worth a read.