[dmharrison]

I'm in a similar situation. I think ultimately show don't tell is the most important adage. I introduced a wiki (mediawiki) where I work and it's been great. At some point when things grow you have to start communicating things and the wiki doc is the right level IMHO and not too labour intensive. Also a good scratchpad that can evolve documentation as it's needed. Internal private discussion boards I find are also good because often a good record of informal chats about problems to which everyone can chime in. Also scenario oriented design is what I find works, means the actual problem is well understood and communicated rather than a DUF approach which can kill iterative innovation and prototyping I've found.