Several of these links do require teachers to register for free accounts. (Make sure you check the terms of use for web sites before using them with students.  Students under 13 years of age cannot have their own accounts and may not register for accounts.) 



ABCya! Word Clouds
Create a word cloud to represent any main idea or topic based on the words you enter into the word cloud application.
Animoto
A video production tool
CoSketch
Multi-user online whiteboard designed to viualize and share ideas as images.
Creately
Online tool for diagramming and collaboration.
Dabbleboard
Collaboration application using an online whiteboard
Edmodo
Secure social networking site for teachers and students
Flocabulary
A site where teachers can find hip-hop raps related to educational content
Glogster for Education
Allows creation of multimedia posters
Kerpoof
Make movies and picture books
Mindmeister
Free mindmapping tool for brainstorming and online collaborations.
Prezi
A presentation creation site
Slide Share
A site for sharing, presentations, documents, and videos
Stixy
An online bulletin board for organizing and sharing notes, photos, and documents
Story Jumper
Story Jumper is a site to create and discover stories for children.
Storybird
Create, share, read, and print stories
SymbalooEDU
A site to organize all of your teaching resources in one place
Tagxedo
Turn words into visually stunning word clouds
ToonDoo
For creating cartoons
Voicethread
Allows for audio blogs
Voki
Avatar creator
Webspiration
Similar to Inspiration and allows for online collaborations.
Weebly
Web page creation
Wikispaces for Educators
Create a free Wiki where you can post text, images, files, and more.
Woices
Listen, create, and share geolocalized audioguides
Wordle
Creates word posters (clouds) An account is not needed to use this site.
WordSift
Captures and displays the vocabulary structure of text. Also displays a word web and Google images related to the text.
Youblisher
Students can create online books.