Known Servers  

http://worldcat.org/webservices/registry/search/Institutions?version=1.1
&operation=searchRetrieve&recordSchema=info%3Arfa%2FrfaRegistry%2FschemaInfos%2FadminData&
maximumRecords=10&startRecord=1&resultSetTTL=300
&recordPacking=xml&query=local.oclcAccountName+all+%22dansk
%22+or+local.institutionAlias+all+%22dansk%22+or+local.institutionName+all+%22dansk%22

Cheshire3 Sample Databases
http://srw.cheshire3.org/services/l5r
http://srw.cheshire3.org/services/spy
http://srw.cheshire3.org/services/syrinnia

Index Data -- Open Content Resources
Description    SRU connection information
Example (Wikipedia Database): http://opencontent.indexdata.com/wikipedia

Library of Congress Online Catalog
http://z3950.loc.gov:7090/voyager?operation=explain&version=1.1

OAI Registry at University of Illinois Library at Urbana-Champaign
http://gita.grainger.uiuc.edu/registry/sru/sru.asp?operation=explain&version=1.1

OCLC GSAFD Database
http://alcme.oclc.org/srw/search/GSAFD?operation=explain&version=1.1

OCLC SOAR Database
http://alcme.oclc.org/srw/search/SOAR?operation=explain&version=1.1

University of Toronto
http://ibridge.library.utoronto.ca:2200/unicorn?operation=explain&version=1.1