And because I really don't foresee needing these links more than once (I should remember this information. Hopefully.), I'll leave them here instead of in my bookmarks... Perhaps someone else may find them useful.
[ Shiva | http://judaism.about.com/cs/deathandmourning/f/shiva.htm ]
[ Ask the rabbi: Shiva Manners | http://judaism.about.com/library/3_askrabbi_o/bl_simmons_shivamanners.htm ]
[ My Fist Shiva: Understanding What to Expect Helps | http://www.interfaithfamily.com/article/issue44/horowitz.phtml ]
[ Shiva Background | http://www.benjamins.ca/Static/shiva_background.htm ]-probably the most useful of the four...