Perl

Perl: 2010 Perl Advent Calendar: Robot Santa asks, "Is your code nice enough?"

Catalyst: Catalyst Advent Calendar - Day 21

Plack: Plack Advent Calendar: December 2010

Dancer: Writing a new Dancer session backend - PerlDancer Advent Calendar

Perl 6: 21 - December - 2010 - Perl 6 Advent Calendar

Ricardo Signes: RJBS Advent Calendar 2010 - Testing with Classes, Roles, and Antlers

Perl Advent Calendar Japan:

Casual: モジュールのバージョンを確認するときどうやってますか？ - JPerl Advent Calendar 2010 Casual Track

Hacker: Text::Xslateで安全なテンプレート生活を送ろう！ - JPerl Advent Calendar 2010 Hacker Track

dbix-skinny: appears to be unavailable on 2010-12-21 - . Please try again later.

data-model: appears to be unavailable on 2010-12-21 - . Please try again later.

Seoul.pm Perl Advent Calendar 2010

Seoul.pm: 스물한번째 날: Plack on SL4A - 2010 Seoul.pm 펄 크리스마스 달력

PHP

The PHP advent uses slugged titles for their URIs, so we can't access them by day of month like everybody else. You can find the PHP Advent Calendar here PHPadvent: Web Advent 2010

SysAdvent

Advent Calendar for System Administrators - uses slugs, not numbers - find the home page at SysAdvent

Plone (Japan)

Plone User Group Japan: appears to be unavailable on 2010-12-21 - . Please try again later.

Performance Calendar

Performance Planet: Performance Calendar » 2010

WEBKRAUTS

WEBKRAUTS: Adventskalender 2010 - Webkrauts

F#

Japanese F# Advent

Japanese F# Advent:: 1/31(土)【埼玉・大宮】60名新春恋活イタリアン交流パーティー★人気会場♪男性は公務員 - connpass