Via some Google hacking I learned from the beginning of Syngress' book, "Google Hacking," I created the following search query. Can someone top this, and create a search that yields more results?
http://www.google.com/search?hl=en&q=%2Ba&btnG=Google+Search
For those who may not know, since Google automatically omits some words such as "a", "the" and "of" this search query tells Google to indeed include "a" and show me every site in Google's knowledge that has the word "a" in it.
Happy Googling!