Simpleretro - make your photo to different style old fashion and share on Twitter, Facebook.
Accelsor - a web based application that helps you to create website in real time. Very cool.
Buildamap - a website that helps you to build an interactive map in a simple way. Interesting!
Snatchcode - one click back up your website without any software and code. Basic plan is free for 1GB size of the website back up each day, if the site is bigger than 1GB, you have to choose a commercial plan.