]> List Of Lists Annotated (LOLA) is a web driven database allowing researchers to identify andcorrelate significant subsets of genes derived from microarray expression profiling. It is maintained by the George Washington University Genomics Core Facility (http://www.gwumc.edu/microarray/). Unlike other databases, LOLA serves as a common platform for analyzing the biological significance of large and heterogeneous lists of genes while simultaneously archiving and integrating the data via links to published literature. In short, LOLA allows researchers to measure the similarity of their gene list to those in the published literature.