Rewtro is a weird retro game engine inspired by fantasy consoles and code golf that runs games encoded in a very small amount of data (2kb/3kb). This way is possible to share games using exoteric and usually data inefficient ways: i.e. sticking some PWA magic and a QR-Code reader to the engine I've made a fake gaming console for mobile devices. Games are coded using JSON structures. Includes tools for more easily building such games.

Really, really cheap cloud hosting. VM, bare metal, block storage, dedicated clouds. Data centers around the world. Claims 100% SLA and SSD storage. Multiple OSes, including Linux, OpenBSD, and you can upload your own.

A cheat-sheet for reverse engineering malware, by Lenny Zeltser.

How to manually convert a Linux machine into a virtual machine running on top of XenServer since later releases no longer support p2v (or p2v-legacy).

A wiki of companies that offer cheap vps and server hosting around the world.

A utility that generates random VMs for security training. Give it a set of parameters in XML and it'll build vulnerable VMs for you to practice with. Uses Puppet, Packer and Vagrant to build the images.