The lists below are by no means comprehensive. If you know of other relevant links please email emboss-bug@emboss.open-bio.org with details.
The following sites offer an alternative view on the EMBOSS documentation and typically provide access to EMBOSS applications and support (sometimes just for registered users) and training materials.
Swiss EMBnet node
The Centre for Genomics and Bioinformatics, Indiana University.
Max-Planck-Institut for Molekulare Genetik, Berlin, Germany
The Finnish IT Centre for Science
Computational Biology Research Group (CBRG), Oxford, UK.
http://www.molbiol.ox.ac.uk/analysis_tools/EMBOSS/index.shtml
Pittsburgh Supercomputing Center, USA.
http://www.psc.edu/general/software/packages/emboss/emboss.html
The Forsyth Institute Bioinformatics, Boston, USA.
The Institut Pasteur, France.
An EMBOSS Manual from Thomas Girke at University of California, Riverside.
http://faculty.ucr.edu/%7Etgirke/Documents/EMBOSS/EMBOSS_MANUAL.html
The following sites are EMBOSS servers based on the EMBOSS Explorer program.
Wageningen Bioinformatics Webportal, Netherlands
The Centre for Genomics and Bioinformatics, Indiana University.
Cancer Vaccine Centre (Bioinformatics), Harvard University.
Robert Cedergren Center, Université de Montréal, Canada.
Centre for Comparative Genomics, Murdoch University, Australia
Purdue University, Indiana, USA
The Bioinformatics Center, National University of Singapore.
Canadian Bioinformatics Resource
The sites below are EMBOSS servers that are not based on PISE or EMBOSS Explorer.
GALAXY from Penn State
Mobyle server based at The Institut Pasteur, France.
EMBOSS on a Biowulf cluster at the NIH
Web forms to EMBOSS applications from the EMBL-EBI, UK.