Ugh: Amanda Palmer's "Poem For Dzhokar" is not as edgy or powerful or stomachable as Amanda Palmer fans think.
Maybe Neil Diamond will at least edit his once before... Nope, never mind, he's already recording a song.
Here, to cleanse your palate, is former US Poet Laureate Robert Pinsky's response to the bombings.
And here's a radio piece from The Story with Nick Flynn reading a poem he wrote over the last week. Best line: "It's too soon to say we were lucky." (The poem starts at about 16:20.)
A quick Google search will bring up some anonymous, immediate poems written by random people online, on forums like fanfiction.net and Yahoo! Answers, which is about as good a place to look for poetry as Amanda Palmer's blog, apparently.