The LC Working Group on Bibliographic Control is having an open meeting about 'uses and users' of data on 8th March at Google in Mountain View, California. This is the first of three open meetings. There will be several expert speakers, and interested parties are invited to attend or submit written testimony to the group. Details of the public meeting schedule are posted on the LC website.
The dates and topics of other meetings are also noted there.
Note: I am a member of the Working Group.