GeneAround: A browsing system for gene annotation using XML technologies. Integration of diverse database has become more and more important in genomic research. Comparing genes over different species in a unified way is one of the demands. GeneAround is a browsing system for gene annotations of various model organisms. The annotations are described based on the Gene Ontology TM (GO),which is an emerging de facto standard vocabulary for functional annotation on gene products. GeneAround stores association data of genes and the GO terms in Extensible Markup Language (XML). An XQuery engine enables a search in the system, and the retrieved data in XML is converted into HTML format to be viewed by users. Moreover, a graphical browser for GO is incorporated to facilitate acquisition of relevant gene entries. The GO browser functions as a graphical user interface to search the entries that are associated to GO terms.