diff --git a/front-end/interview-questions.md b/front-end/interview-questions.md
index 47d8f7fc..bded37d5 100644
--- a/front-end/interview-questions.md
+++ b/front-end/interview-questions.md
@@ -335,8 +335,16 @@ These techniques are related to accessibility (a11y).
 - `width: 0; height: 0`. Make the element not take up any space on the screen at all, resulting in not showing it.
 - `position: absolute; left: -99999px`. Position it outside of the screen.
 - `text-indent: -9999px`. This only works on text within the `block` elements.
+- Metadata. For example by using Schema.org, RDF and JSON-LD.
+- WAI-ARIA. A W3C technical specification that specifies how to increase the accessibility of web pages.
 
-I would go with the `absolute` positioning approach, as it has the least caveats and works for most elements.
+Even if WAI-ARIA is the ideal solution, I would go with the `absolute` positioning approach, as it has the least caveats, works for most elements and it's an easy technique.
+
+###### References
+
+- https://www.w3.org/TR/wai-aria-1.1/
+- https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA
+- http://a11yproject.com/
 
 ### Have you ever used a grid system, and if so, what do you prefer?