Yahoo has expanded its Yahoo Query Language (YQL) to allow developers to create custom table schemas for third-party services, prompting @spullara to gather these schemas into a collective repository. Tom Preston-Werner has initiated a GitHub project named yql-tables to store these useful table definitions and is encouraging community contributions. Users can utilize these schemas directly from the GitHub repository or host them on their own servers, accessible by YQL servers. The project, which has been active for only a few days, has already seen contributions such as a schema for GitHub by @davglass, and the community is encouraged to continue sharing their YQL table definitions to benefit others.