Apple has enabled Web-based samples of music available in the iTunes Store via the iTunes Preview Web site - prior to this, sample music was limited to iTunes itself. Nevertheless, it seems that the overall goal is to increase iTunes music discovery via Web search engines, all of which are now indexing the iTunes Preview Web site. Despite the fact that you can play samples in your browser, the iTunes Preview site pushes you to iTunes whenever possible. follow link
Full Screen Quick Look in Snow Leopard
When viewing files in the Finder in Snow Leopard, instead of pressing just the Space bar to enter Quick Look, press Option-Space to display the selected document in full-screen Quick Look, expanding the preview and hiding everything else that would otherwise remain visible.
- ExtraBITS for 11 January 2010 (10 Jan 10)
Apple Adds Samples to iTunes Preview Site