Andy Osborn, a retired junior school teacher from Surrey, used Facebook to track down pupils he had taught over his 29-year career, setting up a group called "People taught by Andy Osborn."
After befriending a couple of former pupils on the site, within three months membership of his group had exploded to more than 100 as word spread.
"I found out that one chap I used to teach is a physiotherapist going to the
Olympics with the Swedish team, another is with the diplomatic service working in Iraq," he says.
"I've had many messages, mostly good. One child, who was never great at school, wrote that I was his favourite teacher. Another remembered the voices I put on when I read Nigel Hinton's Beaver Towers stories. I'd recommend it to anyone wanting to find out about pupils they've taught in the past."
The TES has invested pound; 5 million in TESconnect - a new website where teachers can share resources and enjoy Facebook-style online networking.
On the site, which launched this week, users can create their own profile, build professional communities and upload lesson plans, while subject channels bring together resources, jobs and advice.
More than 200 teachers have been involved in the creation of the site, which is predicted to become one of the biggest professional networking websites in the world.
What to expect
A personalised homepage (below, right) with jobs in your subject area, resources you can use in your classroom and updates from your community.
Jobhunting will be easier with a new interactive map feature and job alerts. You can browse by position, subject and location and save shortlisted jobs.
To help you find resources, reviews and advice in specific subjects, we've added subject channels for primary and secondary teachers. There's also an online calendar to provide inspiration for assembly or last-minute lesson plans.
You can build a profile on the site. Tell the community who you are, what you teach, and where all your resources can be found.