Erik Vlietinck has posted “Mastering Mac OS X 10.4 Spotlight Search Technology,” an eBook for helping users migrate from earlier versions of Mac OS X to Mac OS X 10.4 Tiger. The new eBook covers making an “OR” query that will look for files with one qualifier or the other; creating Smart Folders and maintaining them; setting preferences; and more. The new 2-page tutorial is priced at €3.50.