Advances in sequencing technology have made it possible to sequence the 2500 MB B73 maize genome, both cheaply and in a relatively short time. Nearly simultaneously, other sequencing-based data are on the leading edge of a data tsunami: sequenced differences (currently >300,000 SNP for >1000 inbred lines and related species) and gene expression data. The MaizeGDB team integrates access to these datasets after considerable cooperation among both data users and suppliers, and typically while the data are being generated. In this way, data suppliers have resources in place to format data ready for integration with MaizeGDB. And, we learn what details, including links to other resources, are needed to support our user community and what interface development is required. An interesting result is that we inadvertently serve as outreach for the data suppliers, explaining the caveats and expected availabilities of data not yet at MaizeGDB. Contact with users is at conferences, by online tutorials, personal visits, or by surveys from the Maize Executive Genetics Committee addressed to all persons listed in MaizeGDB as a Cooperator.