1.	Today the focus is on a few high traffic concentrators and distributors, Yahoo, eBay, eTrade, ZDNet et al. But there's a lot of unused bandwidth and server power distributed around the net.
2.	Ultimately a less concentrated, more distributed Internet is how denial of service problems will be routed around. I've been writing about this for years. Fractional Horsepower HTTP Servers. Bill Gates will get the last laugh, Larry Ellison and Scott McNealy will weep.
3.	The megamonolith in the sky is the one the hackers target. My calendar goes down when Yahoo goes down. All the more reason to have the calendar on my LAN.