Entropy

Excellent LifeHacker post this morning listing free ways to synch folders between computers.

Nothing sucks worse than getting to the office in the morning and realizing you left the most recent copy of an important file—whether it’s your to-do list or a PowerPoint presentation—on your home computer. No matter where you are and what computer you’re using, you always want the most updated set of documents and files you’ve got without having to carry ‘em around on a thumb drive. Luckily, several free solutions can automatically sync folders between computers