Thoughts from a reflective educator.
Update: It looks like Glass has been discontinued.
Glass is a new web service which is opening up by invite only at this point. I just discovered it today, and I'm thrilled with the possibilities. Think of Glass as social bookmarking combined with a discussion forum embedded on every website you visit. You can share text comments, links to other websites, even videos on any web page.
Glass also allows you to create groups of users, and share a particular resource with a group. These groups could be useful as you could create a group of your students, and share a discussion about an online resource with an entire group of students.
The potential for collaboration and discussion using Glass is amazing. I wouldn't use it to replace discussions that you can easily have in person, but it could be a great homework assignment. It can also be a way for students to ask questions with you about a website, and the comments themselves can be embedded within the context of the page as you can specify the location on the page you want the comment to be.
Teachers could use this to evaluate common resources and discuss ideas they have around a particular piece of content available on the web. Students could work in groups and comment on videos in a more private fashion as each comment is available only to the person that is part of the group.
It only works in Google Chrome or Firefox. Check out this video below for more details and here's another post that discusses Glass in more detail.
David is a mathematics teacher and a learning specialist for technology at Stratford Hall in Vancouver, BC. He has been teaching since 2002, and has worked in Brooklyn, London, and Bangkok before moving back to Canada. He has his Masters degree in Educational Technology from UBC, and is the co-author of a mathematics textbook. He has been published in ISTE's Leading and Learning, Educational Technology Solutions, The Software Developers Journal, The Bangkok Post and Edutopia. He blogs with the Cooperative Catalyst, and is the Assessment group facilitator for Edutopia. He has also helped organize the first Edcamp in Canada, and TEDxKIDS@BC.