Primary Wall , for real-time online collaboration between students and their teacher was conceived by a teacher. It is designed to be used in education by educators, primarily in grades K-8. It is hosted by Primary Technology and appears to be in beta form. At this time the basic app is free and no registration is required. A wall will be saved for thirty days unless the pro app is purchased. By registering and paying for the pro app users can change the background, font and security level.
Support is available in the form of a Wiki, Community, a forum for asking questions, Blog and Contact information.
Please note that when I attempted to use this in Internet Explorer the program would not load. When using Google Chrome it loaded instantly and was very easy to use.
This is the link to the wall that I created: http://bit.ly/lL5jTS
Thanks to Richard Byrne for posting about this newer online sitcky note app on his blog, Free Technology For Teachers , on April 1, 2011.