If you need to write and post to a blog when you're out and about, Posts is a well-designed app that's of particular value for managing blogs.
The electrophoretic ink technology used in today's e-readers is pretty cool.
TuneSpan lets you move parts of your iTunes library to other hard drives, but still use the content for playback and syncing as usual. Kirk McElhearn walks you through how to use it.
We often take it for granted that sound just comes out of speakers, but how they work is interesting -- and important to their placement.
Articles by Kirk McElhearn