IERN Collaboration Center 
A listing of over 200+ projects and potential partners from around the globe.
Twine
Radar Networks is pioneering the Semantic Web, sometimes referred to as Web 3.0. Twine is the first service on the Radar Networks platform for managing and sharing information.
FileURLs.com
Get a shareable URL for your file. Time limit. Large files. Beats email.
Skoolaborate
Skoolaborate is a global project that uses a blend of technolocies including, blogs, an LMS, wikis and ‘virtual worlds’ for collaborative learning of both teachers and students.
Quality interaction, conversation and feedback: Great connectivity
When Darren Rowse, also known as @problogger in the Twitterverse, recently asked his “Twitter followers why they loved twitter over 100 of them responded in just a couple of hours. This video is a collection of their answers.”
Google Sites
Create classroom and team sites with Google Sites.
Forget Excel: 14 Online Spreadsheet Applications
A list of Web-based spreadsheets.
preadsheet-applications/
21Classes – Free Classroom and Education Blogs
For classroom and education blogs. Highly recommended.
7061
7064
7095
concept mapping
page
Tags found in search results:
annotate
annotations
audio
blog
blogging
books
brainstorm
calendar
collaboration
collective intelligence
comments
concept mapping
document sharing
document storage
file sharing
file storage
free
graphic organizer
images
information sharing
international
journals
mind mapping
organize
phone
photo sharing
photos
problem based learning
project based learning
project management
projects
radar networks
RSS
schools
semantic web
share
social networking
spreadsheets
students
task lists
task management
teachers
text
time management
time tracking
video
videos
virtual world
web 2.0
web 2.0 directory
web 3.0
web apps
web design
web development
word processor
zoho
zoho projects