US Forest Service
U.s. Forest Service: Monarch Butterfly in North America
Everything you need to know about monarch butterflies.
Annenberg Foundation
Annenberg Learner: Journey North: Monarch Butterfly
Resource on the monarch butterfly, which includes migration maps, instructions for tracking and observing migration, and an opportunity to report your sightings. Also provides teacher information and classroom lessons.
Annenberg Foundation
Annenberg Learner: Journey North: Monarch Butterfly
The beautiful monarch butterfly is the focus of this elaborate site. Links to photos, video clips, cycle of life, seasonal charts, migration maps, and stories from Mexico are also included. Terrific site for students to explore!
Other
Monarch Watch
This is an excellent resource for information about the monarch butterfly that includes information about life cycle, migration, observation, conservation, classroom activities, butterfly gardening, butterfly rearing, and the like.
PBS
Pbs: Nature: Alien Empire
Outstanding site that compliments an insect series on PBS. Interactive presentations include bee anatomy and honeybee hives. Includes interactive puzzles, teacher's guides, and formats for making insect masks.
University of Kentucky
University of Kentucky: Bug Fun
This fun site is designed for teachers who want to have interactive fun in the classroom. "Several articles give resources and basic information about insects and their relatives while others outline activities with different insect...
Science Museum of Minnesota
Science Museum of Minnesota: Journey North Cluster
An elementary resource to learn about butterflies and their migration with links to a wide variety of activities.
The Franklin Institute
The Franklin Institute: Living Things Families
What do centipedes and crabs have in common? What's so special about a backbone? Check this site out from The Franklin Institute if you are interested in biology and classification.