Libraries Be careful what your web sites Like
Libraries: Be careful what your web sites “Like”
So if any of your web sites (especially your online catalogs or other discovery and delivery services) use third party web services, consider carefully where and how they’re being invoked. For each third party, you should ask what information they can get from users browsing your web site, what other information they have from other sources (like the “real names” and exact birthdates that sites like Facebook and Google+ demand), and what real guarantees, if any, they make about the privacy of the information. If you can’t easily get satisfactory answers to these questions, then reconsider your use of these services.