People I follow are predominantly educators and they "tweet" messages on teaching strategies, lessons, educational technology, student management and even just their classroom woes and joys. What we have found is that any feeling/s of teacher isolationism we once had have been diminished because of our use of Twitter. This social media application allows for us to interact with others in our profession; no strings attached, just the main essence of our wants and needs. This is an avenue to advertise the great accomplishments made, vent about the bad and share what works.
Here's one of the web sites via Jerry Blumengarten or otherwise known on twitter as @cybraryman1. It presents a top-notch tutorial on how to use twitter. http://cybraryman.com/twitterforbeginners.html
Sharing is the aspect of Twitter that has been most world shattering for us. As a result of our "tweebs" we have obtained invaluable knowledge about the field of education. Askteacherz has implemented new technology related lessons, learned varying ways of helping student learning and acquired countless tools for our trade; all in just one short year. We have found Twitter to be: daily professional development; a staff meeting on steroids; collaboration gone wild; a limitless learning community and an out-of-the-box in service. Askteacherz recommends that you make one of your agenda items during the summer weeks to improve your skill set as an educator to embrace the power of Twitter.