RLO-CETL Learning Object Repository Harvester
http://www.rlo-cetl.ac.uk/harvester2/

This search engine allows you to search the RLO-CETL’s Reusable Learning Object (RLO) repository without the need to log in to the repository. You can also get a preview of the learning objects in action, though in order to download RLOs you’ll need to login to the repository. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog. This will be added to Academic and Scholar Search Engines and Sources White Paper.