- gmail by offlineimap
- blog and wiki by rsync
- code by subversion
- OPML by subversion
- todo, notes, and minutes in Org Mode by subversion
- delicious bookmarks (cron job + perl script + sqlite) on dreamhost backup
- contact in bbdb on dreamhost backup
- photo on picasaweb.google.com and dreamhost backup
- todo tasks on rememberthemilk.com (here)
- ebook, music, and movie by mobile disk and off-site backup
- document on docs.google.com (here)
（这是什么？）