Public thanks to Open Clip Art Library
(definition based on Wikipedia one with some modification)
The project started in early 2004 by Inkscape developers Jon Phillips and Bryce Harrington to collect designs of flags from all around the world, having been inspired by the efforts to create a collection of flags created by users of vector graphics software Sodipodi. It progressed very well and the project goals were extended to generic clipart, and as of October 2007 it incorporated over 10,000 images from over 500 artists, and offers the entire collection for free download. All images are dedicated to the public domain by their contributors. They are stored in Scalable Vector Graphics(SVG) format, often with thumbnails in Portable Network Graphics (PNG) format.
Actually ,the release of Open Clip Art Library 2.0 introduces a change from the old ccHost software to the new AGPL-based Aiki Framework, a content management system made for Open Clip Art Library 2.0 that would allow anyone edit the website easily. This release culminates the work of Jon Phillips, Andy Fitzsimon, Bassel Safadi, Michi, Ronaldo Barbachano, and Brad Philips who assisted in the launch of the new system which now receives over 5,000 unique visitors and 50,000 page views daily.
As of March 2010 the Open Clip Art Library has over 60,000 members and over 25,000 SVG graphics, calsified and searchable for more easy use. You can also download the full content in one package
Due the amount of fun and as recognition of the awesome work done for all developers and collaborators, to create such useful tool and such high quality searchable and free as freedom content from Tuxbrain we want to thank you all dedicating this penguin and post to you.