So I didn't really want to muddy up the stats we were collecting and tracking for this during the actual development of it, but for those who never found it, we were maintaining a fictional blog for the character of the journalist Reuben Oluwagembi who you meet in Far Cry 2.
The blog was loosely conceived by myself, LP (the producer), Pat Redding, and the writer Kevin Shortt. Once we got the concept nailed down, Kevin mostly handled it by himself and did an excellent job keeping it real, managing the voice of the character, and building a rising tension that would lead into the start of the game such that the world described in the blog on the launch date of the game would be the world the player finds himself in when he started to play. It also develops some interesting backstory for the warlords Mbantuwe and Tambossa and sets the stage for the collection of the "Jackal Tapes" scattered around the game world (all of which are available to listen to on the blog if you didn;t find them all in-game).
In support of the writing, Kevin also worked with Stefan Koziol, one of our artists to do some photoshopping and image compositing on photos the guys took while they were in Kenya. This ties back to some of the reference material we used for actual buildings in the game and gives the whole blog a kind of hyperreal quality that I love.
There were a quite a few regulars showing up, leaving comments and - for the most part - participating in the fiction we were creating. A few of them (judging both from posted comments and from some emails sent to 'Reuben') even seemed to mistake it for a real blog from a real war correspondant on the ground in our fictional African country.
Anyway, I must admit that I would have loved to get this richness of backstory into the actual game itself, but the longer pipeline of game asset development and integration made that impossible. Even though we're definitely not the first to try such a thing, I think you learn the most by doing, and there are definitely some lessons we can take away from this that will help us in the future.