There is a new video out by Forgeworld, and you can view the whole thing here at this link.
The Horus Heresy Volume Two Massacre - with Alan Bligh
Salamanders, Night Lords, Word Bearers, and the Iron Hands are all introduced in the new book..... Of course the events, background and the conflict itself on Istaavan is well worth this book. While I am a huge fan of the Nightlords, I have been seriously contemplating a starting a Word Bearers army.
So check out the video. Forgeworld once again sets a very high bar.
There are also Nightlord and Word Bearer Accessories in the latest Forgeworld Newsletter.