Diagram.ly

 Diagram.ly is a free site that offers a drag and drop interface for creating diagrams using clip art and pre-drawn shapes. There is no registration and you can save your work to your computer in either a xml, png, jpg, or svg format. 

Gudli

Gudli is a free PreK-second grade educational site that offers activities in math, language arts, reading, and social studies.  The interface is very appealing to young students, including a cute way of scrolling through the available activities by using a rainbow colored squirrel to "barrel roll" through the menu.

Super Teacher Tools

Super Teacher Tools is a site that allows for the creation of Flash-based games and other tools for classroom management. These include:

• Classroom Jeopardy
• Speed Match Quiz Maker
• Who Wants to be a Millionaire
• Board game
• Seating Chart Maker
• Group Maker
• Random Name Generator
• Splitflap Counter
• and other fun tools, too!

DOGO News

DOGO News is a site that with current event articles that students can read and discuss. Teachers can sign up to access lesson plan resources. 

Instapaper

Instapaper is a free service that allows you to save web pages that you would like to read for later.  It has a "Read Later" bookmark that you click. Then you come back to the site later to read them or print them out, or read on your iPhone/iPad/iPod Touch.

Compflight

Compfight is a photo search engine website that looks for images from Flikr. With Compfight, type in your search query and you can select whether you want to search for that word in the tags of photos or their text descriptions. You can also choose whether you want creative commons images. 

Vocaroo

Vocaroo is a free site that makes voice recordings without any hassle (no registration, no software download, etc.).  Simple choose the "click to record" icon, record your voice, and then choose from the option of downloading your recording or using an embedded code for use on a blog or web page.