Ontologizer is a tool for the statistical analysis and visualization of high-throughput biological data using Gene Ontology.
See the official website for more details.
Sebastian Bauer, Steffen Grossmann, Martin Vingron, Peter N. Robinson. Ontologizer 2.0—a multifunctional tool for GO term enrichment analysis and data exploration. Bioinformatics (2008) 24 (14): 1650-1651. doi:10.1093/bioinformatics/btn250s