Does tagging content with terms from a shared, publicly available controlled vocabulary make a difference in increasing content discoverability on the web? A colleague of mine proposed finding out by experimenting with tagging the same content, such as two identical blog posts, differently: one with terms typical for posts on the blog and one with terms from a publicly available controlled vocabulary. Then after a few weeks the statistic of visitor traffic to the two post versions would be compared.
Wikidata and VIAF, were chosen as the sources of publicly available controlled vocabulary terms. Since VIAF contains only name authorities (proper nouns), I used terms just from Wikidata in my blog tagging experiment, whereas my colleague used terms from both Wikidata and VIAF in his blog post tagging experiment (The Open Web Tagging Experiment on the Ol' Patio Boat Blog).
The two preceding blog posts on The Accidental Taxonomist blog, "Using Linked and Other Open Vocabularies," are identical, except that one was tagged with terms from Wikidata, linking to them, and one was tagged with terms that have been created and used just for The Accidental Taxonomist blog. I have not linked to either blog post from other social media, as I usually do. If you are going to click on the links for either of these blog posts (rather than just scrolling down the home page), please click on the links for both posts, not just one, so as not to impact the blog post visitor statistics.
Results will be posted on an updated version of this blog post in a few weeks.