"Anonymous" successfully took down the RIAA's Web site via a DDoS attack on Friday, although the attack was launched an hour later than expected.

"Anonymous" successfully took down the RIAA's Web site via a DDoS attack on Friday, although the attack was launched an hour later than expected.

The group, which also advertised its actions on the "/b/" portion of the 4chan.org bulletin board, managed to take down the site within five to seven minutes.

earlier this week, after following a court order. The , claiming that the site broke the law. are still available, however.

The Anonymous users signed on to the Low-Orbit Ion Cannon (LOIC) tool, and began trying to access the RIAA site at 5 PM ET, instead of at 4 PM as the organizers originally planned.

The site originally used the Operation Payback site to coordinate the attack, but shifted the site to another domain on Friday.

"[W]e started with Denial of Service attacks; we started the protest of the future by targeting websites of lobbying groups and law firms that abuse copyright law. We simply will no longer be ignored," the site said.

A flyer advertising the effort was also posted on the Anonymous page of "Encyclopedia Dramatica" at press time, and a message urging people to visit the site was posted to the comments section of the PCMag.com story on the LimeWire closure.

According to a manifesto published on the Operation Payback Web site, the group set out to fight back against what the group called an abuse of copyright "to assure a steady flow of income". However, the site hosting that manifesto failed as the attack began.

The RIAA is based in Washington D.C., which means that the orgnization was closed for business when the attack finally took down the site's servers.