SWORD (Simple Web-service Offering Repository Deposit) is a protocol for interoperable deposit between repository platforms. It was developed by a JISC project during 2007, followed by the SWORD v2 project in 2011. See www.swordapp.org for further info.
The SPELL gene expression explorer searches multiple datasets for related gene expression patterns.
Hibbs MA, et al. Exploring the functional landscape of gene expression: Directed search of large microarray compendia. Bioinformatics, 2007.