Third finance-related Anonymous "Operation Payback" takedown in a single day: PayPal.com is effectively offline, moments after the command was tweeted. At the time of this blog post, the PayPal *service* is still functioning, but the site's dead. Earlier today, Visa.com and Mastercard.com were taken offline by Anonymous DDOS attacks, along with other targets perceived as enemies of Wikileaks and of online free speech… including Twitter.com, for a while.
Update, 7:20pm: Huh. http://www.paypal.com/ and https://www.paypal.com/ load fine, http://paypal.com does not. But a DDOS is obviously under way. "Two options, could be the https protocol saving them (also suggested by Hacker News guys), or could be the subdomain accessing different servers," guesses Boing Boing's Dean Putney.