Some recommended internet Tarot symbol definition sites are:
+
www.tarot-card.ne
+
www.aeclectictarot.com
+
www.paranormality.com
Some good quality, practical and easily available Tarot books:
+Complete Guide to the Tarot: Eden Gray
+Tarot for Life: Quinn & Pollack
...more esoterically oriented Tarot books:
+Thursday Night Tarot: Lotterhand
+Tarot: Key to the Wisdom of the Ages: Case
+Esoteric Tarot Card Meanings: Case