You heard me.   A lot of authors have fans. Many have devoted, wonderful readers, who will reach out to tell us that they've just stumbled upon a line they didn't remember having read before and it made their day, or who want us to know we made them cry, but it was a good cry, and they feel better now. Some of us, though--the luckiest of us--make friends through this business. True friends. The kinds of friends who will leave us snarky comments in the margins of our books, or totally and completely rearrange them in printed pages on