There is now a Facebook page calling for a Day of Rage in Sudan. Similar facebook pages were set up before the Tunisia, Egypt, Libya and Bahrain revolt. But there do seem to be a lot of such pages developing. Currently we are tracking one on Saudi and this one on Sudan.
These groups are forming a high redundant rhizome of groups who repeat each other social graph and can hold up to a few, if not almost all of the members taken out. With people also able to form links outside and reproduce content around a site.