LayerD is an effort to develop an extensible framework for programming languages. It features unlimited compile time programmability, modular design, pluggable code generation, unified high level semantics, multiple source languages, integration of RAD tools with compilers and languages, development of domain specific languages, development of abstract software, extensive features for code generation and meta-programming. Its implementation is able to implement software for .NET and Java bytecode using one high level language that is extensible by programming compile time functionality. There is a Java front-end that allows programming for this new framework using a well known language.
Voca is a vocabulary trainer for foreign languages. It allows you to create and manage your own word lists and share them online. You can make word lists for any language or for other things you want to memorize. It lets you do different types of exercises, including grammar, pronunciation, and picture tests. It lets you take tests with open answers, self-check, or multiple choice. Voca has support for multiple translations of a single word.