4chan's popular message boards are under another distributed denial of service attack. Many members of Anonymous inhabit the site's boards, although it is unknown whether the current attack is related to any of the previous DDoS attacks purportedly carried out by Anonymous.
Shortly after the attack began, an update on status.4chan.org quickly stated, "Another day, another DDoS! Right on the eve of /b/'s 300 millionth post." 4Chan was also subjected to a similar attack last week, whereupon it quipped, "We now join the ranks of MasterCard, Visa, PayPal, et al.–an exclusive club!" These payment companies had previously been targeted by Anonymous in a series of attacks last month.
Real-time performance graphs for websites that have been involved (or may become involved) in the WikiLeaks and Anonymous attacks can be monitored at http://uptime.netcraft.com/perf/reports/performance/wikileaks