Sigpad is an email signature tool that allows you to insert updates from your favorite social networking sites to your email messages in the form of email signatures. It will create a dynamic image signature for you that display your most recent update you made on your social networking account.
Supported Social Networking Sites
Twitter – Will display your latest Tweet
Flickr – Give updates to your latest uploaded photos.
YouTube – For latest uploaded videos
Yelp – Make your latest Yelp review seen as a signature
My Space – Display your top friends
Facebook – Share your status update
Feed Update- Displays the latest blog entry from your blog or favorite blog.
Quote of the Day – Give inspiration by sharing the Quote or the day. (Non Social)
To use the service, just select which type of email signature you want and you will be asked for your social networking profile URL or username. Choose which email service you want the signature to appear. Enter the username and password for your email. This works for Yahoo, Windows Live and AOL email accounts. If you’re concerned with your email security and hesitant to hand out your email username and password, you can choose the safer option that works on Gmail. It comes in the form of a bookmarklet. Just save the bookmarklet and press it every time you want to place your Email signature in Gmail.
Support for Windows Mail and Microsoft Outlook is coming soon. I personally, would like to see Mozilla Thunderbird added to the list.