Just what is this Stuff we call Algae?
Information on the freshwater algae likely to be found in a garden pond.
http://www.fbas.co.uk/Algae.html

Algae
A basic guide to algae including marine, freshwater and land species.
http://www.seaweed.ie/algae/default.lasso

Zygnematales
Information on this order of conjugating green algae which are among the most common freshwater algae and their phylogenetic relationships.
http://tolweb.org/Zygnematales/20578

Green Algae
Micscape Magazine for enthusiast microscopy
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/green.html

Rhodophyta: Red Algae
Information on the characteristics of this group of seaweeds with details of the life cycle of Palmaria and Coralline algae.
http://www.seaweed.ie/algae/rhodophyta.lasso

Introduction to Coralline Algae
Information on the biology of these algae, including collection, preservation, staining, mounting and their systematics.
http://www.botany.uwc.ac.za/clines/default.htm

Algae Description and Types
Definition of algae and different types of algae
http://www.lenntech.com/eutrophication-water-bodies/algae.htm

Golden Algae
Information from Wikipedia on this large group of unicellular flagellate algae, the Chrysophytes, found mostly in fresh water.
http://en.wikipedia.org/wiki/Chrysophyta

Articulated Coralline Algae
Research project by Ian Ehrenreich provides a great deal of information on these red algae, accompanied by several photographs and diagrams.
http://www.mbari.org/staff/conn/botany/reds/ian/default.htm

Blue Green Algae
Article describing these nitrogen-fixing algae, scientifically known as Cyanobacteria, their classification and their toxic and beneficial properties.
http://www.murraybluegreenalgae.com/blue-green-algae.php