YakTribe is probably the greatest website for people interested in Specialist Games: Necromunda (both old and new), Mordheim and Gorkamorka. Before the release of Necromunda: Underhive, the website held all the PDFs you could ever want about the old game. Heck, it even supported Inquisimunda (boo, hiss).
But now, YakTribe has released the tools for maintaining your gang roster and managing the campaign in Necromunda: Underhive/Gang Wars. The tools are amazing, beautifully done and easy to use. You can even add photos of your gangers to your profiles and you have multiple options for printable gang cards! It’s great!
Age of Darkness is what Forge World calls their 40K spin-off set in Horus Heresy. Naturally, everyone just calls it Horus Heresy. 8th edition dropped last year and Age of Darkness found itself without a rulebook. After all, the game was using modified 7e rules. This forced Forge World to release its own standalone rulebook. However, Alan Bligh, the lead writer for the project passed away from cancer a few months before 8e, and it was a real scramble to get it published. Took them half a year, but now we have a book. And here is my copy of Age of Darkness rulebook!