As a relative newcomer to Perl, I was pleased to see Slashdot's link today to the Perl Advent Calendar (although I was disappointed to find it doesn't work in Opera.) I was even more pleased that it reminded me one of my favorite seasonal web design and development blogs, 24 Ways to Impress Your Friends would be spinning back up today. Over the next 24 days, various web luminaries will contribute elegant new techniques for layout, accessibility, development, you name it.
Finally, my inner pedant points out that neither of these are actually Advent calendars, since Advent starts on the first Sunday of Advent (November 28th this year) rather than December 1st. Metric Advent?