Wikipedia:WikiProject Record Charts/ToDo

Per WP:CHARTS, a record chart is normally considered suitable for inclusion in articles about albums and songs if it meets both of the following characteristics:

1. It is published by a recognized reliable source. This includes any IFPI affiliate, Billboard magazine, or any organization with the support of Nielsen SoundScan. Recognized national measurement firms, such as Crowley Broadcast Analysis for Brazil or Monitor Latino for Mexico, are legitimate sources of charts.
2. It covers sales or broadcast outlets from multiple sources.

Many members of the project are actively involved in updating the charts from various countries. Charts are typically published weekly, and individual charts are summarized on Wikipedia with lists by week or by decade. The most recent of these can be found in Category:2017 record charts and Category:2010s record charts. Many of the charts lists from earlier years need to be reliably sourced.