National Council of Teachers of Mathematics (NCTM)-http://www.nctm.org/- This is essentially their sales pitch: A membership connects you with exclusive resources
and mathematics education expertise, connection to a network of 90,000
people who care about mathematics education, and the ongoing effort to
improve the teaching and learning of mathematics. I am a huge fan of giving students extra resources for learning and making them available online. I think that being a part of this organization will help me as a teacher and help to give students some great extra resources for their benefit.
International Society for Technology in Education (ISTE)-http://www.iste.org/welcome.aspx-Here is their pitch for joining: Participate in ISTE's member communities to expand your professional learning network, and sharpen your skills by using our NETS-aligned learning resources with
thousands of ed tech resources available 24 hours a day, seven days a
week, we’re here to support your professional learning on your own
terms. I think that the best way for a teacher to keep things new and exciting is keeping up with technology and using it when it is effective and engaging for students. Having access to many educational technology resources and learning how to use them is going to help keep me at the cutting edge of technology in education.
TED-http://www.ted.com/-I have seen a lot of useful educational videos from this website. It is more of educational philosophy stuff than "how to" things that I have benefited from. Before I started student teaching I thought my views would change a little, but not much and they have changed a ton since my student teaching experience. I am now more open than ever to thinking about different ways of teaching. Our philosophies are ever evolving and should be to be effective teachers.
Emerging Ed Tech on Twitter-https://twitter.com/#!/EmergingEdTech-This Twitter feed posts many articles, blogs, etc. about cutting edge educational technology and other education based things.
Steve Hargadon on Twitter-https://twitter.com/#!/stevehargadon-This Twitter feed posts about events, articles, blogs, resources etc. about educational technology.