TidBITS Electronic Publishing today announced that it will release four new ebooks covering key aspects of Mac OS X 10.4 Tiger at 6:00 p.m. tonight, seconds after the release of Tiger. The new ebooks include: “Take Control of Upgrading to Tiger” by Joe Kissell ($5), “Take Control of Customizing Tiger” by Matt Neuburg ($5), “Take Control of Users & Accounts in Tiger” by Kirk McElhearn ($5), and “Take Control of Sharing Files in Tiger” by Glenn Fleishman ($10).