The eagle-i central search application is free and open to everyone:
eagle-i.net
Use our training node as a sandbox for playing with institutional applications
Sweet:
http://training.eagle-i.net/sweet
Login with username/password: demo/demo for full access
Use L1:Level1 for basic access
Public SPARQL endpoint:
http://training.eagle-i.net/sparqler
Institutional search:
http://training.eagle-i.net/insititution