Sanskrit Voice is a website created by Seshu Karthick to spread the awareness of Sanskrit through the internet. Now Sanskrit Voice is providing an opportunity to students and those interested in Sanskrit to express on the web through Sanskrit Expressions, an online community tool.
Sanskrit Expressions has two components - Word-Game and Two-Liners. The Word-game helps the users build their Sanskrit vocabulary steadily, while the Two-liners will encourage them to frame short-sentences and converse in Sanskrit.
You can find more details and join Sanskrit Expressions here.