Finding the Masters of the Universe stuff you want can sometimes be frustrating. Here are some things that might help. (Note: We cannot personally vouch for the reliability of any of these sources except for Time Traveler Toys, with whom Matt has done business with several times.)

Usenet

• alt.fan.heman-shera
• rec.toys.misc
• rec.toys.action-figures
  
• rec.toys.action-figures.marketplace
  
• news:rec.arts.sf.marketplace
  
• rec.collecting

Sites Auctioning Collectibles

• eBay
  
• Live Auction Online

Sites Selling Collectibles

• He-Man.org's Marketplace Boards
• 80s Tees
• Action Comics
• Adam's He-Man Inventory
• The Cafe Wha?
• Collectibles.4mg.com
• The Dream Saver
• The Figure Finder At The Action Figure Times
• Figures, Inc.
• Grizzlor's Figure Finder
• Helen And James Comics
• The Nutcracker Shopping Mall
• Remember This
• Richard's Toys
• Stand Up Comics
• Time Traveler Toys
• Toy Town Collectibles

Useful Sites

• The State National Bank Universal Currency Converter
  Updated daily, this currency converter is extremely helpful when you're dealing with international deals and must convert US$ to some other form of money.
  
• The National Address Server
  When shipping packages, it often speeds up delivery by at least a day if you add the last four zip code digits (ex. 12345-6789). Go here to find those last four out for yourself to use when giving out your address and when shipping other people's items out.