It’s that time again…time for holiday season advent calendars!
24 Ways – the seminal web developer’s advent calendar, running since 2005!
Performance Calendar – mostly about website performance
UXmas – advice for user experience design
SysAdvent – systems administration topics
Perl Advent – for the Perl fanatics – I know you’re out there!
It’s a Shape Christmas – features creative artwork
Adventskalendar – a WordPress tip or trick each day
Moo – goodies or special offers daily
Themergency – WordPress-related tips or techniques each day
One’s 24 GIFs of Christmas – an animated GIF each day
WP snippets til Christmas – a useful WordPress code snippet each day
MDN Holiday Calendar – a daily tip or goodie for web developers
It’s always worth reading the new perls (hah) of wisdom each year, but it also doesn’t hurt to browse the contents of the previous years.