Gmail related stuff

My little search on gmail using google shows some interesting thing:

1. A file system which can be mounted from Linux, using the storage space provided by Gmail.
   http://richard.jones.name/google-hacks/gmail-filesystem/gmail-filesystem.html
   
2. A batch "upload" tool to upload your existing email to Gmail, which in fact turn out to be mass email sender :)
   Google GMail Loader (GML)
3. Blog which dedicate to GMail usage tip
   http://gmailgems.blogspot.com
4. Gee.... check out this too: http://www.marklyon.org/gmail/gmailapps.htm