You might find the following links quite useful in your research:
ABIM
ALion
Amos
Biology WorkBench
BioNavigator - bioinformatics workspace
BLOCKS
Boehringer Mannheim
CAP Sequence Assembly
CBRG
CIB
Clemson University Genomics Institute
ClustalW
CMS MBR
CODEHOP
Codon Usage Database
Computational Biology at Oak Ridge National Laboratory
Crystallography World Wide IUCr
Dali Server
DDBJ
DeCypher
eBLOCKS
EMBL - European Bioinformatics Institute (EBI)
EMBL - Heidelberg
EMBnet.ch
eMOTIF (functional bioinformatics)
EraGen
ExPASy
GCG
Genetic Disease Map
GOLD
HGSC
HGSC align
HMMER 2.1.1, Wash. U
Human Gene Mutation Database
Hyseq
IBC Internet Tools
Incyte Genomics
InforMax - bioinformatics software
Integrated Genomics
KEGG
LabOnWeb
MBCR
MFOLD
NCBI (BLAST, Genbank, PubMed, Toxonomy...)
Operon Technologies
PatScan
PEDANT
Pfam
Phylogeny Programs
PIR
PredictProtein Server
Primer3
ProDom
Promoter Prediction
PROSITE
Protein Data Bank
ProtoMap
REBASE
SAM
Sanger Centre
Sequencher
Silicon Genetics
SRS
Stanford Web Primer
Statistical Calculations
Swissprot
TIGR - Institute for Genomic Research
TimeLogic
ToPLign
VSNS
Web Cutter
Arabidopsis Information Resource
Biochips - Argon National Laboratory
Caenorhabditis elegans
Catalog of Databases
Center for Bioelectronics, Biosensors and Biochips (C3B)
Database for E. coli, Salmonella and Shigella comparative genomics
DNA Chips and MicroArrays
Genomics Lexicon
Human Mitochondrial Protein Database
Laboratory of Computational Genomics
Neuronal Databases
NIGMS Human Genetic Cell Repository
Organelle genome database
Pharmacogenetics and Medicine Lectures
Pharmacogenetics Anticancer Research Group
Pharmacogenetics Knowledge Base
Single Nucleotide Polymorphisms for Biomedical Research
Skeletal Muscle Gene Expression Database
Structural Bioinformatics
Structural Database of HIV Protease
Voltage-gated Potassium Channel DataBase
Oligonucleotide Properties Calculator
Synthesis of Modified Oligonucleotides
Molecular Modeling Research Tools on the Web
Molecular Modeling Databases
Software on Molecular Modeling
BioJava
BioPerl
BioPython
BioXML