Include unofficial publication in CV Problem

I am now applying for a Ph.D. in electrical engineering.

I have read Mor Harchol-Balter's very helpful guide in applying for computer science Ph.D., where she said


  ...Note that prior research experience does not mean that you need to have published paper...Create a website that has links to all of your papers in English. Explain in your application that all of your papers can be found on your website... (Page 12-14)


Even though I am not applying for computer science, but I guess the this piece of advice also applies in my case, where I have a undergrad thesis and several preprints I am proud of.

The question is how do I list these works in my CV, there seems to be two options.


Upload these papers to arXiv and then generate citation in my CV. The concern is that these early works may make me look bad if I get my Ph.D. (hopefully) and go onto the job market (maybe I am worrying too much).
Include some links in my CV. I do have a personal website to demonstrate my academic history. However, the issue is that I am not sure the committee members will actually type the long link in their browsers and read these works (someone told me a CV is at most skimmed 30 seconds), especially knowing that many other applicants have already published in some big famous conferences.
I would suggest a slight variation to how you can present such work: Research Projects section in your CV. Give a short (1-sentence like) info about each research project and your contribution right inside the CV and include a link to your website, where these unpublished papers/reports are available.

Reasons:


you want to show the research experience that you had
this research is not published formally through a peer-reviewed process and you are unsure if that publication record (even if it is mere arXiV one) will serve you any good after being admitted to a Ph.D. program
you want to provide an opportunity for a potential advisor to take a closer look at the details of your previous research