• [http://www.wynia.org/wordpress/?page_id=123 Synchro over FTP example]
• Under WinXP, you can declare a WebDav folder and declare a new wiki onto that folder. Works great at my side.
• You can use Subversion
• [http://git.or.cz/ Git] works really great
• Doesn't require explicit renames (implicitly figures out when somethings been renamed)
• Doesn't require explicit deletes (it figures that out, too)

You will find the most recent version of this here: http://sites.google.com/site/wikidpad/synchronizing-wikidpad-on-multiple-computers

The following is just a plain text copy of the current version, links not working:

I am using getdropbox.com successfully for several month to sync my WikidPad-wikis to three computers. I use a original-sqlite database. This is important for it to work. In WikidPad's help you will find how to convert an existing wiki. I do not even quit WikidPad on one of the computers at all. Nevertheless I have no syncing problems. Since I don't quit WikidPad from time to time not all pages are found because they were changed on a different computer and were not indexed yet; then I do a database rebuild (in WikiPad's menu "Wiki") and everything is fine again; you can ignore the warning. Once in a while you should check your Wikis data directory for files with "conflicted copy" in the name; these are generated by Dropbox. You have to merge these manually. I recommend WinMerge for doing that.

I do that with a WinSCP3-sync script, which I start in my logout.cmd.

It looks like this:

This is the file "sync.cmd":
winscp3 <Synr-auf-Delli.winscp
pause

--- cut ---

This is the file "Synr-auf-Delli.winscp":

open ftp.whatever.com
option transfer binary
option synchdelete on
  synchronize local Q:\Ho\Synr 
/var/www/web426/files/Koh/Kopien/RobBei/SynrWinSCPAutoDelete
exit