Hap Aziz, director of the School of Technology and Design at Rasmussen College, explores what he terms the "five key components" to approaching educational technology.
I am a huge fan of Pinterest so I thought I would check there first for more information on PLN's. I really had no prior knowledge of what PLN's were so I thought this was a great starting point. There are several websites about PLN's.
Pinterest is awesome, except for the fact that it is a total time sucker. At least I get some good ideas for my classroom and recipes for dinner from it. I also posted this link because it had quite a few websites that talked about PLN's. I'm new to PLN's but I am certainly learning a lot more about them this week.
I used this site frequently last year for taking my class on video conferences/virtual field trips. Some of the conferences charge a fee and some are free. You can search by grade and subject.