Double Lambda Studio is devoted to programming; any language, any paradigm, Double Lambda is interested. Most projects are open source, some aren't but are free, some aren't. Located in the USA, Double Lambda's devoted team of code engineers are looking towards every project to hone and define their programming skills.
Also included are not only some projects Double Lambda is working on, but also some basic information for people who are either new to programming, or want to learn more.
If you are interested in programming, check out http://www.projecteuler.net for some interesting problems.