I’ve come across a free service that significantly speeds up DNS requests as well as preventing phishing scams. OpenDNS uses a distributed network of DNS servers to increase reliability, security and speed. Well worth having, both on home, school and business networks!
A new service called bubbl.us looks as though it could be useful for online collaboration. Sporting an AJAXy interface, it allows collaborative brainstorming. Check out the demo on the front page to give it a try!
I’ve already blogged about this over at teaching.mrbelshaw.co.uk, but there’s a very straightforward guide here on how to make Excel spreadsheets a lot more visual. I use this as a visual homework checker via my classroom projector! (via Lifehacker)
