The dark web is an incredible smorgasbord of knowledge, services and folks. Although many of those links are legitimate, others set it off into criminality. That is why it is important to use Tor and a VPN when browsing the web, especially around the dark web.

CIA Shop
The CIA has their particular store about the dark web where they have sets from job listings to archival data like the World Factbook. You can get this great site with the Tor browser, which encrypts your traffic and erases your browsing history after each session.

Comic Book Library
For fans of Marvel and DC, there is a large variety of downloadable comics around the dark web thanks to this onion domain. Just be sure to browse the disclaimer carefully and know your legal rights before downloading sets from the dark web.

Tunnels
This onion domain boasts one of the primary digital libraries about the dark web links, with 500,000 books and articles downloadable. Take care, however, as this onion site contains material that violates the laws of copyright.

Dread
Here is the Reddit from the dark web, a forum which you could find out and be involved in discussions without revealing your identity. It’s a great place to obtain your bearings around the dark web and learn a little more about its unfiltered and frequently controversial content.
If you want scientific papers, take a look at Sci-Hub, which allegedly sports ths largest repository of these documents for the dark web. It’s a wise idea to use a virtual private network when visiting this website though, as many have reported malware and redirects.
More details about dark web links have a look at this useful net page