NIH/National Library of Medical Portal: http://www.ncbi.nlm.nih.gov

HHMI/Keck Biopolymer Facility at Yale: www.info.med.yale.edu/wmkeck
Specialty oligonucleotide synthesis

Protein Data BankProtein Data Bank: www.rcsb.org/pdb

Proteomics Server of the Swiss Institute of Bioinformatics: www.expasy.ch/

Nucleic Acid Database Server: ndbserver.rutgers.edu

The RNA World at IMB, Jena: www.imb-jena.de/RNA.html
Maintains large number of links to sites about RNA

Vienna RNA Package: www.tbi.univie.ac.at/~ivo/RNA/
RNA folding and sequence design software