  We explore the canonical Grothendieck topology in some specific
circumstances. First we use a description of the canonical topology to get a
variant of Giraud's Theorem. Then we explore the canonical Grothendieck
topology on the categories of sets and topological spaces; here we get a nice
basis for the topology. Lastly, we look at the canonical Grothendieck topology
on the category of $R$-modules.
