Women's contributions often go unacknowledged, their innovations seldom mentioned, their faces rarely recognized. We want you to tell the world about these unsung heroines. [...] If women need female role models, let's come together to highlight the women in technology that we look up to. Let's create new role models and make sure that whenever the question "Who are the leading women in tech?" is asked, that we all have a list of candidates on the tips of our tongues.

Members of the PHP community have already started making their blog posts (and tweets) about the day - here's a list:

• PHPWomen - the Ada Lovelace Pledge
• Zend Developer Zone - Finding Ada in the PHP Community
• Chris Hartjes - Ada Lovelace Day - Celebrating Women In Technology
• Lorna Mitchell - Ada Lovelace Day: Kathy Sierra
• Rob Allen - In honour of Ada Lovelace
• Derick Rethans - Finding Ada
• Lukas Smith - Finding Ada
• Elizabeth Naramore - For Ada Lovelace Day, My Ode to uberChick
• BinaryKitten - Ada Lovelace day 2009 - @LornaJane #ALD09
• Elizabeth Smith - Ada Lovelace Day 2009
• Stefan Koopmanschap - Ada Lovelace Day - Women in PHP