From Shout's homepage: Shout invites educators and students to take an active role in global environmental issues. Connect online with experts in the field, share ideas, and collaborate with people around the world committed to solving environmental challenges.
Heidi Hayes Jacobs is the leader in curriculum mapping and implementation of curriculum for today's students. This is the link to her LiveBinder that is everything and anything you wanted to know about Twitter for Educators in the 21st century. (I have also posted a link to LiveBinder a couple weeks ago--awesome tool!)
Using archives of Google Earth street view, you can tour the world at street level. See street art in NYC, go down a South African highway, check out an apartment complex in London--the sky's the limit!
From World View: The World Wide Web brims with excellent education resources in global studies. No matter your discipline, there is good information out there that can help you bring an even stronger global perspective to your classroom or school. World View has compiled many strong web sites in the categories provided below. We will be adding new categories and links in the future, so be sure to visit our website again.