This may or may not already exist, or already be in the works, but I might as well mention it to get more people thinking about it: The fastest way to spread an operation is for people with experience in it to create starter kits and easy-to-understand instruction manuals for people looking to begin their own local versions. Occupy movements are spreading in both number of people, number of occupations, diversity of locations, and diversity of natural environments, and the learning curve in some cases seems to be rather steep. However, the opposite problem may occur for second-wave Occupy movements just beginning to form - there is too much information from all the experience being accrued, and perhaps not enough focus on synthesis. Once this synthesis is achieved, however, the term "viral" would not even begin to cover how rapidly this spreads, IMHO.
I wish I could offer this synthesis myself, but my experience is largely that of a distant spectator who faces personal challenges that make real-time leadership impractical. However, I do feel that I can point people in the right direction from time to time, and this is one of those times: Folks with experience in building Occupy movements from the ground up in a diversity of conditions should coordinate on building a concise, practical, and yet flexible starter kit and instruction manual that can be widely and freely disseminated and make nascent movements stronger and less likely to run into damaging, costly, dangerous, or time-wasting obstacles.
This would, I imagine, be heavily centered on logistical principles, training exercises, safety precautions, police and governmental relations, and methods of practical self-governance under a variety of numerical and material conditions. Undoubtedly there is already a great deal of literature floating around about demonstration tactics and humanitarian planning, but the way in which they're being applied is radically new and calls for some new attention and new thinking from people on the ground. What they are building are permanent direct democracy institutions to coexist alongside traditional elected institutions (realistically, you can't do everything through direct democracy), not goal-oriented protests or targeted service-provision NGOs. This is big. It has the potential to transform politics worldwide, and remake how cities operate.
But first it has to get off the ground locally, and there are obviously many challenges to that, as courageous people around the country and world are discovering. Nascent occupations are vulnerable, have limited coverage, and their supply lines are few in number and fragile if they should be interrupted by police raids or inclement weather. They can make critical errors in judgment that limit their immediate potential or even, in worst case scenarios, make things more difficult for others. So far movements have been very good at avoiding the worst kind of self-inflicted problems, so the large majority of mistakes have been on the part of police departments and city governments, but that will not be the case universally as this thing spreads: People make mistakes. It will be important to not only actively educate people from the very beginning, but to prepare them in the event that self-inflicted problems creep up anyway.
Mostly, however, it would be about logistics. That's pretty much all an economy is: How people get from what they have at their disposal to what they need and want. Where do you begin? Once you've begun, how do you continue? How do you get the things you need or want into camp, see that they are efficiently and safely distributed and applied, that their waste and byproducts are hygienically controlled and disposed of in an orderly and cleanly fashion, and maintain a level of supply robustness and security against interference from hostile forces, theft by criminals, disruption by uncooperative and poorly-disciplined elements within the movement, or loss from accident, incompetence, or other natural vicissitudes (e.g., animals getting into the food supply)? How should a nascent movement with uncertain appeal in the community approach its relations with police and local government? All these questions would benefit from some standard answers by people who've been through this particular process, rather than trying to cut-and-fit solutions from other situations like refugee camps that might not apply.
I would also suggest that, in addition to a starter kit and instruction manual for early organizers, people work on a standard Occupier handbook for individuals who come into an occupation at any given point in time that covers the bases for safety, conduct, response to police actions, the local methods of self-governance, and so on and so forth. If standardization can be achieved as broadly as possible across movements on these things, then it will make it easier for people who are involved in one movement to transfer to another when/if they move to a new city, or if they just want to be involved a number of movements rather than focusing exclusively on their local one. This would serve to further cement the Occupy movements as being the seeds of permanent direct democracy institutions, which I'm increasingly coming to believe is their greatest potential - possibly even their destiny, though I will not be counting any chickens at this point.
One obvious possibility for these documents would be an online wiki, although in that case the potential for interference and sabotage by wingnuts, shills, and provocateurs would be extreme, requiring a level of vigilance that might not be worth it if the information could be efficiently crafted, distributed, and updated without letting every Tom, Dick, and Harry edit it. It may seem more in keeping with the spirit of OWS to have it be universally-editable, but I don't see that being necessarily beneficial - the point is to put out information in a concise and reliable format that cuts through the clutter, and it wouldn't stop anyone else from offering commentaries or alternatives if they find the product flawed. As in the open source community, the results would end up naturally focusing on a few highly credible versions with a good track record rather than being swamped by edit armies the way Wikipedia is.
Hope this helps.