Xbox Live Offers New Levels, Features and Premium Retail Packs to Supercharge Online Gaming Experiences on Xbox 360: "The next generation of Xbox Live will be offered to gamers through two levels of service. Xbox Live Silver is a free level of the service offered to all who own an Xbox 360 system, a high-speed Internet connection, and a memory unit or a hard drive. The Xbox Live Gold membership delivers the full Xbox Live premium online experience annually for $49.99 (U.S.)/$59.99 (CDN),* which averages to a little more than $4 a month (U.S.).
Xbox Live continues to transform and unite Xbox® game communities worldwide, with a presence in 24 countries worldwide and a global community of more than 2 million members."
Goes on to list Gold features.