We are an academically based organization that develops and supports GenMAPP (Gene Map Annotator and Pathway Profiler), a visualization and analysis tool for biological data. GenMAPP illustrates the relationships between various genes and proteins to help researchers understand their data in terms of connected, biological pathways. Over 21,000 people from >70 countries have registered to download the GenMAPP program. There are over 430 publications that reference GenMAPP or use GenMAPP to display data in the context of biological pathways. GenMAPP is 100% open source. All new development is in Java, MySQL, Derby, XML, and Web technologies such as MediaWiki in collaboration with the UCSF library, BiGCaT Bioinformatics, and the Cytoscape Consortium. Our development team is composed of individuals who are both biologists and programmers, providing a unique perspective on building and using open source tools. As in past years, GenMAPP is serving as an umbrella organization for Cytoscape and WikiPathways projects as well. All three projects are at exciting crossroads, making this an ideal time to get involved in development.