In bioinformatics most of the resources, like data bases and software, are openly accessible. Here you can find several important servers and data bases. Many databases are accessible via the servers and are therefore not listed separately.
Important information is also made available by ISCB International Society for Computational Biology.
EMBL European Bioinformatics Institute
ENA European Nucleotide Archive
RCSB Protein Data Bank - RCSB PDB
NCBI National Center for Biotechnology Information
de.NBI German Network for Bioinformatics
ELIXIR A Distributed Infrastructure for Life-Science Information
ExPASy SIB Bioinformatics Resource Portal
Kyoto University Bioinformatics Center
OBRC Online Bioinformatics Resources Collection
Oxford LibGuides Bioinformatics. Databases & Web Resource