Cool Teaching Lessons and Units  is a source of units and lesson plans, especially WebQuests.

Integrating the 'Net into the Elementary Classroom is a summary of six levels of Internet use in the classroom with appropriate links for each from Sarah A. DiRuscio, Forefront Curriculum.

Visual Organizer of Activity Formats from Filamentality has some examples of matching the type of web based activity to the goals you have for your students. To find a particular activity use the Search the Registry using Knowledge Network Explorer Search. (When at this site, click on the down arrow on the box at the right and choose Filamentality - type the word your are searching for in the box on the left.)

Research Modules are another way to look at the different levels of activities, all of which still challenge your students to think. 

Classroom Organization: Nuts and Bolts of Doing Web Based Lessons is a summary of good teaching practices applied to engaged learning with technology.

The Amazing Picture Machine is a safe place to get images from. It has lesson ideas and search tips.

A Scrapbook example is Exploring China. 

A primary source of scrapbook material is American Memory from the Library of Congress.

Grasshopper on the Road WebQuest  -  grade 2

We are One is a grade 5 WebQuest