Apple has released iTunes 11.3.1 with a couple of podcast-related fixes. The update squashes a bug that prevented subscribed podcasts from updating with new episodes and rectifies an issue that caused iTunes to become unresponsive while browsing podcast episodes in List view. iTunes 11.3.1 is available as a direct download from Apple’s iTunes Web page or via Software Update. (Free, 229 MB, 10.6.8+)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
Check out the Take Control ebooks that expand on the topic in this article:
Set up short abbreviations which expand to larger bits of text,
such as "Tx" for "TextExpander". With the new custom keyboard,
you can expand abbreviations in any app, including Safari and