If you missed the two-week window for free Macworld Expo 2011 registration earlier this year, you have another chance. Through 25 July 2010, you can sign up for a free Expo Only pass at the Macworld Expo Web site. The show floor will be open from 27 January 2011 through 29 January 2011. follow link
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.
- ExtraBITS for 19 July 2010 (19 Jul 10)
More Free Registration for Macworld Expo 2011