The art of reading tea leaves is called tasseography or tasseomancy.

Here are a few sites devoted to tea leaf reading:

How to tell your fortune in tea leaves
Reading Tea Leaves

There are several tea company sites that have good information about tea, tea rituals and ceremonies, and reading tea leaves:

Adagio Tea - "The Internet's Friendliest Tea Store"
Eastern Tea Company: Tea Knowledge Base
Stash Tea - Lots of good information here, including a page of Tea Quotes from literature and pop culture.

Tea doesn't just taste good, it's good for you, too! Here's a UK site devoted to tea's health benefits: Tea Health.

A good site with many tea links is this page of Tea Related Links; also, check out other Divination Links.