Carl Friends Minicomputer MuseumA private collection of calculating machines, from slide rules to microcomputers and workstations, with photographs and descriptions.
http://www.classiccrimefiction.com
Highlights crime and mystery books, both from the readers and collectors perspective.
http://www.cnb.cz/en/czech_legal_tender/coins/
Official page about the circulating coins by the Czech National Bank. With detailed technical specifications for each coin.
http://www.coinarchives.com/
An online archive of ancient coins featured in major numismatic auctions. The site features a search engine and allows you to view the original text, images, and prices realized from many auction catalogs.
http://coincollector.org/
Coin collecting FAQs, news and a discussion forum. Includes information and photos on US 20th century minted coins.
http://www.coinfacts.com/
Free information on United States Coins, including pricing, rarity, and historical information.
http://www.coinlink.com/
Directory of rare coin sites and numismatic news portal, updated daily.
http://rjohara.net/coins/
An introduction to the bronze, silver, and electrum coins of the ancient Greek city of Miletos (Miletus) in Ionia.
http://www.tclayton.demon.co.uk/coins.html
The history of individual denominations used in England since the Norman Conquest. Includes a price guide.
http://homepage.eircom.net/~lawe/
A personal site exploring and presenting research findings on the forgotten pastime of crest and monogram albums. Presented by Edward J Law.
http://www.geocities.com/olividae/
Exchanging shells and information about Olividae and other mollusks.
http://www.collectorcafe.com/
A site for collectors and dealers in antiques and collectibles, providing news, features, email chat, classified adverts and an online meeting place for the collecting world.
http://www.collector-link.com/
Search engine for locating trading card collecting sites. Over 2000 sites are catalogued.
http://www.collectors-society.com/
An online collectors site for coins, comics and sports cards that includes message boards, registries and further information on a paid subscription basis.
http://www.collectpapermoney.com/
Currency identifiers, bookstore, grading, and tips for collectors.