Windows Freeware GMail remote command lets you Perform Simple File open and shutdown operations just by sending mail to your GMail MailBox using special tags. What You can do with it?

1 - To execute applications;
2 - To open web pages;
3 - To shutdown the system.

After Downloading the Program GRC, you'll need to [...]

Greasemonkey script Gmail Encrypt adds encryption to the emails you write in Gmail.
Not all people uses encryption. But when your e-mail does all the Business stuff you should encrypt your conversations. This script can only be used from FireFox and you will need the Greasemonkey extention to make it work.
Greasemonkey script [...]

you can upload a picture of yourself to your Google account, suggest a contact photo for yourself to your friends, and assign photos to your contacts. This feels a bit Friendstery to me, but I have photos of my close friends and family show up on my phone when they call, and it’s a [...]