CSS3: Creating a graceful breadcrumb navigation menu.
Facebook: 40+ great examples of fan pages.
Freelancing: 3 ways to motivate yourself when you're running low.
Humor: Top Tweets illustrated by The Oatmeal.
Sublime Text 2: Writing your own plugins.
Unicode: Shapecatcher is a web-based tool that will try to match supplied drawings with known Unicode characters.
WordPress: Prevent access to your dashboard using IP filtering.