Is it possible to share data between the client and the server using node.js?

Is there any way to share data (including objects) between the client and the server in node.js? I used to rely on a module called now.js that was designed for this purpose, but the project has been discontinued, and I'm trying to find a replacement. Is there any other way to seamlessly synchronize variables between the client and the server, now that now.js has been abandoned?

After now.js, the two closest contenders are shareJS and dnode:

http://sharejs.org/

https://github.com/substack/dnode