You can follow the ongoing Kagan confirmation hearing via webcast from the Senate Judiciary Committee’s web page.
You can find same-day hearing transcripts from C-SPAN on the University of Michigan Law Library’s Elena Kagan web page. The Michigan page also includes biographical information about Kagan, links to her authored works, transcripts of speeches and links to her confirmation hearings for her nomination as Solicitor General.
The Law Library of Congress offers a similarly comprehensive web page here.