Askeet is a community based Q&A repository.
Anyone can post a question about any subject, or answer an existing question. Registration and use are completely free. If you need an answer, ask your question, register to its RSS feed of answers, and just wait until your news aggregator pops out with an answer. Questions and answers can be rated, so that the most interesting questions and the most useful answers come first. If you have knowledge to share, pay askeet a visit from time to time, you might even earn some money.
Askeet is also an open-source software developed in PHP. Version history, bug tracking, wiki and browsable source are available in the askeet trac. Download, adaptation and commercial distribution are free, according to the MIT license.
Easy to install and to customize, askeet may be the solution you are looking for if you need a FAQ section on your Intranet, or for a mini knowledge base for your community. If you are interested in commercial support or development of additional features, contact fabien.potencier (at) sensio.com. This has already been done for several clients, and you can see the gutefrage website for an example of the possible customizations of askeet.
Askeet is also the result of a 24-days tutorial called the symfony advent calendar, and issued on December 2005 to illustrate agile development of a web 2.0 application in PHP with the symfony framework. Reading the tutorial will introduce you to symfony and explain all the code behind the askeet application.
Askeet is published by Sensio and the symfony development team.