To celebrate 500 000 forum users Paradox Interactive is giwing away Europa Universalis III:Chronicles in their newsletters, so if you subscribed it, you should get it.
They are also launching they own webstore located at: http://www.paradoxplaza.com/shop
and are starting it with 50% discount on "several of their top titles". Looking at the store, it's actually 55% discount and all the games are sold only as Steam Digital downloads. It offers 23 games like A Game of Dwarves, Crusader Kings II, Victoria II, Majesty Collection, Hearts of Iron III, King Arthur's games or Sword of Stars.
Apparently you have to be on their forums AND subbed to their newlsetter. I am subbed to their newlstetter but am not on the forums. I didn't get anything.