Traditionally, you backup your computer's data to the web, but anyone who uses a lot of webapps puts a lot of data out there. Is there a good tool to backup all my gmail mail, facebook pictures and status updates, google docs, etc. to my computer? Preferably automatically.
Backupify does do all of the items you listed in your post: gmail, facebook, google docs, etc. and a bunch more as well.
I actually work for Backupify and yes, we would be a great solution to your problem. If interested, we have a free for life account that you can try, and upgrade from there if need be. Let me know if you have any questions.
Click here if you want to signup