Is blogging experience (on medium) relevant on the CV for PhD CS Admissions? (US) Background: Undergrad applying to PhD CS Programs in the US
I had done a blogging internship in my sophomore year and I had written 10 blogs during the tenure. All the articles are relevant to my domain and are balanced between technicality and general information on the domain.
Why I want to put it in my CV:

The blogs were supervised by someone who has been a &quot;linkedin&quot; top speaker and I have his recommendation as well on my page.
The blogs were generally well received (but nothing extra-ordinary).
I exactly have space for one more &quot;small&quot; component in the &quot;experience&quot; section of my resume.
The other option I have is working part of a start up for a month but I have nothing to show for that as I am not allowed to.

Short CV Background:

2 pages
First page: only undergrad uni details and &quot;experience (research internships)
Second page: Projects, External collaborations, Awards, Skills.
It's complete and organized with only that small portion of space remaining.

Actual Questions:

Will it help showcase any part of my expertise? (Communication, writing, English in general)
Is it relevant to the Admission panel? (or would I be wasting their time by adding this?)

I don't plan on mentioning it anywhere else like SOP, LOR, SOH (Personal History statement).
Almost any experience is useful on a CV, provided that you can link it to the job you are applying for in a sensible way (this is nearly always possible). It is likely that all candidates have similar diplomas, so the &quot;extra&quot; things you did besides your degree are very valuable. Being able to demonstrate that you are a skilled technical writer and science communicator will almost certainly help.
Mentioning &quot;medium&quot; by name has no value (see also below), but the fact that you have written well received articles on a weblog will improve your CV.
There is a good chance that the hiring committee does not know &quot;medium&quot;, and if they do, they probably know that a lot of very bad articles are published on medium (as well as some good ones). If you get through a first screening the hiring committee could be interested in reading your articles to see if they are any good: it would help to provide them with a link to the list of articles.