The searchable indexes below expose public domain ebooks, open access digital repositories, Wikipedia articles, and miscellaneous human-cataloged Internet resources. Through standard search protocols, You can make these resources part of your own information portals, federated search systems, catalogs etc. Connection instructions for SRU and Z39.50 are provided. By way of an example, you can also try Index Data's MasterKey search tool to access these resources. If you have comments, questions, or suggestions for resources you would like us to add, please contact us, or consider joining the mailing list.. This service is powered by Index Data's Zebra and Metaproxy