In a sign that legal digital music services are finally gaining ground on file-sharing, Apple's iTunes Music Store tied with peer-to-peer service LimeWire as the second most-popular digital music service in March 2005, according to a report from New York-based market research firm NPD Group. The top service in March was file-sharing service WinMX, which was accessed by 2.1 million households; both iTunes and LimeWire were used by 1.7 million households. Also in the top 10 were file-sharing networks Kazaa and iMesh, and legal services Napster and Rhapsody. NPD said a total of 4 percent of Internet-enabled U.S. households used a paid music download store during March. "One of the music industry's questions has been when will paid download stores compete head-to-head with free P2P download services," said NPD Group's Russ Crupnick. "That question has now been answered. iTunes is more popular than nearly any P2P service, and two other paid digital music offerings have also gained a level of critical mass."
What was once a simple, unidirectional flow of electricity from centralized power plants to passive consumers is evolving into a complex, intelligent network where millions of distributed resources actively participate in grid operations. This transformation, powered by smart grid technologies, represents one of the most significant infrastructure shifts of our time. It promises to reshape how we generate, distribute, and consume energy. At its core, the smart grid represents far more than mere digitization of existing infrastructure. This bi-directional capability is fundamental to understanding why smart grids are becoming the backbone of modern energy systems, facilitating everything from real-time demand response to the integration of renewable energy sources. Smart Grid Market Development By 2030, smart grid technologies are projected to cover nearly half of the global electrical grid, up dramatically from just 24 percent in 2025. This expansion is underpinned by explosive gr...