Yahoo! Games - Hearts Tactics
This section includes a series of tactics and playing moves to be used by players in order to compete and win a Hearts game, provided by the Yahoo! Games center.
games.yahoo.com

Alan Hoyle - The Hearts page
The rules of the Hearts card game including many variations. Also has links to many other hearts web sites and places to play on-line.
alanhoyle.com

Hearts - Wikipedia
Information about Hearts game, a trick-taking playing card game for four players. Other names include The Dirty, Black Lady, Slippery Anne, Chase the Lady, Crubs and Black Maria.
en.wikipedia.org