Sweet'n Low (trademarked as Sweet'N Low) is a brand of artificial sweetener from granulated Saccharin, dextrose and cream of tartar. It was invented and first introduced in 1957 by Benjamin Eisenstadt and his son, Marvin Eisenstadt.
http://sweetnlow.com/

http://www.sugarintheraw.com/

Equal is a brand of artificial sweetener containing aspartame, dextrose and maltodextrin. It is marketed as a tabletop sweetener by Merisant, a global corporation which also owns the well-known NutraSweet
http://www.equal.com/

Truvia is: The species Stevia rebaudiana Bertoni, commonly known as sweetleaf, sweet leaf, sugarleaf, or simply stevia, is widely grown for its sweet leaves. As a sugar substitute, stevia's taste has a slower onset and longer duration than that of sugar, although some of its extracts may have a bitter or licorice-like aftertaste at high concentrations.
http://www.truvia.com

http://www.splenda.com

This is the best natural sugar substitute I have tasted.
http://www.associatedcontent.com/article/240575/sugar_vs_agave_.html