One place to start: Reyko Huang of the Center for Defense Information has written an informative paper on Jemaah Islamiah, the Bin Ladenite group that's been widely blamed for the Bali bombing. "Here one finds scattered but substantial pieces of evidence," he writes, "that several radical Islamic groups, overcoming national and geographical barriers, have maintained deep and long-running ties with one another toward a shared fundamentalist goal. Their clandestine, elusive 'cells' are dispersed throughout everyday-life places, functions, and businesses, rendering Afghanistan-style military campaigns impractical. Furthermore, many of these organizations forged partnerships with al Qaeda long before authorities began unearthing the scale of their transnational reach."
I know: It's not exactly pleasant reading. Maybe I'll stay focused on the sniper after all.