title: Load balancing web servers + keeping content synced
body: <p>I'm considering implementing EC2's Elastic Load Balancing features, but I'm running a web application (on the LAMP stack) that has frequent changes and wondering what the most common strategy is for keeping the application in sync between the servers that are load balanced. The database would live elsewhere, so I'm only worried (at this point) about keeping the actual scripts in sync when I make changes.</p>