The EBI stands for European Bioinformatics institute which is a part of EMBL (European Molebular Biology Laboratory). Their database is a repository of all the bioinformatics data published. It is free and open to everyone. Thier website has options for sequence analysis, structure ( homology based) analysis, microarray analysis, proteomics services etc. They are based in the Welcome Trust genome campus in Hinxton which is not too far from Cambridge,UK.
The list of databases available on www.ebi.ac.uk are:
EMBL-Bank- DNA,RNA sequences
ENSEMBL- genomes
Array Express- microarray data
Uniprot- protein sequences
InterPro- protein families,domains and motifs
PDBe- macromolecular structures
IntAct- protein-protein interactions
Reactome - pathways
ChEBI- small molecules
Here is a pdf for more information:
http://www.ebi.ac.uk/Information/Brochures/pdf/In_a_nutshell_small_file.pdf