WordPress.org

Create archives of all your WordPress data & files and have them stored remotely. That's right! Remote storage of...

1. Your data (from your WordPress MySQL database)
2. Your files (and Uploads) -- everything in wp-content
3. Your .htaccess file
4. Instructions for a smooth recovery
5. A shell script that can help automate recovery -- though this is still a "work in progress"

You provide the remote account; this plugin provides a connection to the offsite facility you choose. Choose from...

1. You can use Dropbox (if you don't have a dropbox use this referral link): https://www.dropbox.com/referrals/NTE0ODYwNjc5
2. Also, archives can be 'sent' to Amazon's AWS S3: https://s3.amazonaws.com
3. And, FTP is now supported as well (just provide an offsite host, username & password, and optionally a remote directory on that host)

Some recent improvements include:

1. A new option to exclude cache directories
2. Automatic exclusion of MySQL tables that don't start with your table prefix

Check out http://wptimemachine.com for more information.

This Plugin requires PHP5 (Version 2.0.20 was the last release to support PHP4)