The American Association of Artificial Intelligence have a special "Semantic Web" track of technical conference papers at AAAI-06, the 21st National Conference on Artificial Intelligence at the Seaport Hotel and World Trade Center, Boston, 16-20 July 2006. Abstracts need to be submitted by the 16th February, see the AAAI: Call for Papers.
This is a good place to publish papers on Semantic Web applications, including those from Bioinformatics. Early examples of Semantic Web application in Biology include BioDASH, YeastHub and the Gene Ontology Next Generation.
