About.com, Collectibles [ http://collectibles.about.com/ ]
Offers collecting resources, including: free online price guides and links to resource websites. Includes eBay tips and hints, price guides and values, how to find your treasures and the history of various collectibles.

Coin Collecting [ http://www.royalmint.com/ ]
Buy British collectors coins, wedding gifts, christening gifts and baby gifts from the Royal Mint. Make your next coin or gift purchase special with commemorative coins from the Royal Mint.

CollectingVinylRecords.com [ http://www.collectingvinylrecords.com/ ]
Ebook about collecting vinyl records that details the valuation process, grading issues, buying and selling issues, finding vinyl records and album cover art.