So this is the first post of the weekly database content.
Thinking about planning a microarray study, see if somebody already did the work for you! GEO is NCBI's microarray data bank and GEA is its UK counterpart. Take a peak.
Gene Expression Omnibus
Gene Expression Omnibus (GEO) is a database repository of high throughput gene expression data and hybridization arrays, chips, microarrays.
Gene Expression Atlas
Gene Expression Atlas is a semantically enriched database of meta-analysis statistics for condition-specific gene expression.