Directory of Registered hosts - with forum representative and website links
Directory of FREE service providers - Free VPS/Hosting/Other

Free Licenses with a VPS

Click on the license type you want to see a list of hosts offering it for free.

Direct Admin - DirectAdmin is a graphical web-based web hosting control panel designed to make administration of websites easier
Blesta - Customer management, billing, and support system for web hosting providers
CWPpro - CWPpro is the professional version of CentOS WebPanel.
ApisCP - a full-stack hosting platform for modern websites
BillingServ - BillingServ is a complete online ordering and invoicing service making transactions and sales simple.

Noteworthy Posts

A Huge collection of VPS Benchmarks - Done using YABS
LES Discord - Get the invite link here.
LES Rules - Also includes details on how to get a provider tag to start selling here
All things Wordpress - Discuss all matters Wordpress here