For a long time I was using Windows Live Sync to synchronize a few folders between my MacBook & MacBook Pro, however it no longer seems to work in Snow Leopard.
I was also using Dropbox to create a shared folder although I wasn’t really using it as a synchronization tool. Dropbox only lets you share a single folder rather than selecting any folders you want to synchronize.
What I didn’t realize is that you can put a symbolic link to another folder inside your dropbox folder to synchronize it. A finder alias will NOT work; you have to use the command ‘ln -s’ in the terminal to create a symbolic link. Thanks to that little known feature, I’m able to use it to synchronize my entire documents folder, my source code, and several other folders.