a open source tool and free web service that lets you map your flights around the world, search and filter them in all sorts of interesting ways, calculate statistics automatically, and share your flights and trips with friends and the entire world (if you wish).
online, in-browser tools for schematic capture and circuit simulation. These tools allow students, hobbyists, and professional engineers to design and analyze analog and digital systems before ever building a prototype. Online schematic capture lets hobbyists easily share and discuss their designs, while online circuit simulation allows for quick design iteration and accelerated learning about electronics.
allows you to create a chat community and talk to people who are currently reading the same web page as you are. Just add gabbly.com/ before the site's url. For example gabbly.com/cnn.com (IE not supported)
a free MicroContent WikiWikiWeb created by JeremyRuston and a busy Community of independent developers. It's written in HTML, CSS and JavaScript to run on any modern browser without needing any ServerSide logic.
Online speed reading application. You paste the text you want to read in there, set the read speed, then it'll flash each word at you based on the speed. So you read linearly without any eye wandering/distraction