Here are a few of my Favorite Philatelic Links:
Collectors Resourse Page
Philatelic E-mail List
Free Stamps for Kids
Linn's Stamp News Online
Net Collection Postage Stamp Collecting Links Main Page
Stamp Collecting Club
Internet Stamp Collecting Magazine full of Resources
Stamp Search Engine (very good)
Stamps, Supplies, etc.
National Postal Museum Online (pretty cool)
Virtual Stamp Club