(Ganked from furiosity via the HP-loving literati.)
If you see any posts ANYWHERE saying that JK Rowling died today (or any other out-there news), DO NOT CLICK ON THE LINKS. It looks like the same person who took over shoebox_project; seems now they're creating accounts and posting their spider food/keylogger/whatever-infested links to popular HP comms.
If you mod a comm and see a post claiming outrageous news and linking to tinyurl, please delete that post as soon as you can. JKR did not die, the world is not ending tomorrow, and your grandmother is fine too.
In general, before you click any link, ever, make a habit of looking in your status bar to see where the link leads. If it's a cloaking service like tinyurl or any of these, feed it to the w3c Validator first to see what link it's obscuring.
Pass it on.
p.s. Also, see here and here for more information about the recent account break-ins.