Currently we link to Google Scholar and RePEc. Anytime you add a publication to your OpenScholar site, Google Scholar and/or RePEc gets notified depending on your site and school install setting preferences.
We are currently working on an integration with ORCID and it will be released shortly.
We allow content from online repositories & softwares like PubMed, MARC, Endnote to be imported into OpenScholar websites. Additionally, OS websites can be configured to allow users to export citations right from the website.