Do you have more than one website to take care of? Are you running Wordpress, Joomla, Drupal, or any other blog / content management system? Then you might know this problem: How to update multiple sites at once when an update of your blog or cms software comes out?
If you just have your ftp client you will probably log in to every ftp server and transfer the files to each of your sites. Now let's assume you have like ten or twenty sites, this can take quite some time. I had this problem before, so I decided to look for an automated way to update multiple websites with just one click.

These tools can make your life much easier when you need to update multiple ftp sites at once:

Wordpress FTP Update Tool

This is a very handy tool for uploading a set of files to multiple FTP sites. It was made for Wordpress updates, but it can actually be used for all multi site transfers. So you can use it for updating your favorite content management system, like Joomla, Drupal or whatever... 
It works for Windows XP/Vista.

Download: http://www.seo-vault.de/wordpress-ftp-update-tool/

 

WS_FTP

With the help of its scripting opportunities, you can automate your file upload to multiple sites.
It works for Windows XP/Vista.

Download: http://www.ipswitch.com/

RSync

RSync is a syncronization tool for Linux, once configured it can upload your files to as much sites as you want. One feature is that it just replaces newer files, so non changed files  will not be re-uploaded again.

Download: http://rsync.samba.org/

GAdmin RSync

Based on RSync this tool for linux gives you a nice graphical user interface for your multi site transfer.

Download: http://85.214.17.244/gadmintools/