Instapundit has a roundup on the Virginia Tech shooting. And Pajamas Media (with a roundup of their own) links to some cell-phone footage from a student.
I'm scratching my head regarding why the crackdown didn't occur at 7:15, when the first call came in.
UPDATE: VA Tech not the deadliest school disaster in U.S. history after all.
UPDATE II: PJM keeps rounding it up. More here.