I am all about uniting communities using web 2.0 collaboration technologies. On the science education side, I teach a science research class at Saint Joseph's High School in South Bend, IN, I also work with BOSCO (bosco-uganda.org) to bring collaboration technologies to Internally Displaced Persons in Northern Uganda. I uses wikis extensively in both efforts. (See sjhsrc.wikispaces.com, and bosco-uganda.wikispaces.com).
Tom.....go to my page and take a look in the comments that have been going back and forth between me and a teacher in Qatar. She is looking to connect with working in the high school arena. Thought you would be interested.