University of California
Ucmp: Cyanobacteria
General information on the cyanobacteria, the blue-green algae and the features that make them different from prokaryotic bacteria. Also included are pages that point to more specific info, like life history and fossil records.
Missouri Botanical Garden
Missouri Botanical Garden: Lakes and Ponds
This illustrated website features facts about lakes and ponds and their special place in geography, natural history, and as a biome.
TED Talks
Ted: Ted Ed: How a Single Celled Organism Almost Wiped Out Life on Earth
Anusuya Willis explains how cyanobacteria, simple organisms that don't even have nuclei or any other organelles, wrote a pivotal chapter in the story of life on Earth. [4:14]
MadSci Network
Mad Scientist Network: Toxins of Blue Green Algae
Discusses the dangers of blue-green toxins on humans.
abcteach
Abcteach: Ponds
[Free Registration/Login Required] The abcteach directory contains sample pages from their pond unit for non-members. Handouts are in PDF format.
Treehut
Suzy's World: Life on Earth
This site from Suzy's World, which is a personal site from Suzy Cato, explores what evolution is, and how long there has been life on earth. Content includes fun facts, a great experiment, and a classroom activity.
BiologyWise
Biology Wise: Types of Algae
Discusses the characteristics of four different types of algae.