Lanyrd via Twitter
Writing about web page http://lanyrd.com/2012/lumenet/
I've added a conference to Lanyrd and at first I thought that this was a bit of a waste of time as my Twitter search was rubbish.
I am very glad to say that I was wrong.
Once I added the conference LumeNet 2012, I added some of the companies/institutions that were involved. This resulted in finding lots of people in the lighting industry to follow on Twitter.
It's always worth having a go at these things just in case you can find real value in doing it - after all no knowledge is a waste of time.