Known Servers  

• German National Library

http://www.dnb.de/EN/Service/DigitaleDienste/SRU/sru_node.html

• The Virtual Library of Bibliographic Heritage
  
  
• Aquifer (American Social History Online)

http://www.dlfaquifer.org/sru
http://www.dlfaquifer.org/sru?operation=searchRetrieve&version=1.1&query=dog&recordSyntax=mods&maximumRecords=10

• OCLC Institution Registry

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/l5r?operation=searchRetrieve&version=1.1&query=ccg.rarity=r

http://srw.cheshire3.org/services/spy
http://srw.cheshire3.org/services/spy?
operation=searchRetrieve&version=1.1&query=ccg.artist="A4H Designs"&maximumRecords=10

  http://srw.cheshire3.org/services/syrinnia?
operation=searchRetrieve&version=1.1&query=dc.title="Hound Dog" and rec.lastModificationDate=01010001

• 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?
http://z3950.loc.gov:7090/voyager? version=1.1&operation=searchRetrieve&
query=dinosaur&startRecord=2&maximumRecords=5&recordSchema=mods

• 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