SERP preview tool - Visualise how your website will appear in the search results
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
PiPer - A DIY Minecraft computer to build gadgets
Blogcast - Turn your articles into audio
Pennywise - Cross-platform application to open any website or media in a floating window