As of 2015, the Billboard Hot 100, published on Billboard.com, is a weekly chart of the most popular songs in the United States. It determines its popularity rankings by analyzing Nielsen Music data from radio airplay and music sales as well as online streaming data from streaming services.
Billboard.com also offers a number of other charts and online services. Its other charts include the Greatest of All Time lists, which rank artists with the most Billboard Hot 100 songs, as well as charts of the artists with the most songs on the Billboard Hot 100 ranked number one.
In addition to charts and lists, the website includes music news, new album reviews, podcasts and video interviews of popular artists. Additionally, it is possible to find different charts organized by nation and genre. Within each broad genre category, there are more narrow sub-genres. For example, the pop charts include Adult Contemporary and Adult Pop Songs. In addition to genre, there are specific charts for emerging artists, music videos and holiday music.
The website also provides charts for music in countries other than the United States, such as Japan, the United Kingdom, Canada, Germany and France. By searching for specific dates on the Billboard Hot 100 page, users can find past Billboard Hot 100 charts from as early as 2002.