NNC collection of the Smithsonian institution, one of the largest numismatic collections in the world.
http://americanhistory.si.edu/collections/numismatics/

Wikimedia has media related to coins
http://commons.wikimedia.org/wiki/Category:Coins

The MoneyMuseum is a money and currency museum that resulted from private initiative. It is aimed at an interested lay public.
http://moneymuseum.com/

The Numismatic Museum of Athens, with a history going back to 1829, is one of the few of its kind in the world and the only such museum in the Balkans. It provides continuous educational support for Hellenism in terms of numismatics.
http://odysseus.culture.gr/h/1/eh151.jsp?obj_id=3368

The Ministry of Culture is the governmental body responsible for cultural heritage and the Arts in Greece.
http://odysseus.culture.gr/index_en.html

Complete on-line catalog about euro coins : pictures, technical infos, mintages, circulation and commemorative coins, mintsets, etc... Free monthly newsletter.
http://users.skynet.be/euromaster/

A huge collection of full color coin images. over 10,000 different coin types from 450 states/countries as of December, 2006.
http://worldcoingallery.com/

The permanent displays of the Department of Coins and Medals are distributed across the different galleries of the museum, each in the appropriate cultural or artistic context with the objects of the other departments.
http://www-cm.fitzmuseum.cam.ac.uk/coins/

The Alpha Bank Numismatic Collection is today one of the largest collections of ancient Greek coins. It includes more than 10,000 coins from the entire ancient world, from Western Europe to India and from Ukrania to Ethiopia.
http://www.alphanumismatics.gr/

The Australian War Memorial commemorates the sacrifice of Australian men and women who have served in war, through its ceremonial areas, extensive exhibitions and research facilities.
http://www.awm.gov.au/

Coin Images for non-commercial use only
http://www.bitsofhistory.com/ace/CI.html

The department of coins and medals is home to one of the world's finest numismatic collections, comprising about one million objects. The collection spans the entire history of coinage from its origins in the 7th century BC to the present day.
http://www.britishmuseum.org/the_museum/departments/coins_and_medals.aspx

Join over 75 of the Northeast's finest coin dealers at the monthly CDCDA coin show in Albany, NY.
http://www.cdcda.com

Listings of coin shows all over the world.
http://www.coinshows.com/

D and F Coins deals in rare United States coins exclusively, specializing in 18th century type coins, Morgan/Peace dollars, Full Step Jefferson nickels and Cameo Proofs.
http://www.dfcoins.com/

Euromuse.net is a public access portal giving accurate information on major exhibitions in European museums. It provides all vital information in one place, updated by the host museum.
http://www.euromuse.net/

The cornerstone of the Gold Rush Gallery is the showcasing of the fabulous Gold Rush Collection, featuring complete collections of gold coinage from the U. S. Branch Mints at Dahlonega, Georgia and Charlotte, North Carolina.
http://www.goldrushgallery.com/

In terms of the number of items the Numismatics Accounts for more than a third of the entire stocks of the museum. The Hermitage numismatics collection has long been famed as one of the largest in the country.
http://www.hermitagemuseum.org/html_En/03/hm3_7.html

The Hunterian houses one of the world's great coin collections, containing 70,000 coins, medals, tokens and related objects. About half is the original collection of Dr. William Hunter put together at the end of the 18th century.
http://www.hunterian.gla.ac.uk/collections/museum/coins/coin_index.shtml

Scotland's oldest museum, coins section.
http://www.hunterian.gla.ac.uk/collections/museum/coins/collections/history.shtml

Currency Museum
http://www.imes.boj.or.jp/cm/english_htmls/index.htm

The Israel Museum in Jerusalem, publication, numismatic collectios and shop.
http://www.imj.org.il/eng/archaeology/numismatics/index.html

Coin show held every February, June, and September in Long Beach, California.
http://www.longbeachshow.com/

The National Museums of Scotland show Scotland to the World and the World to Scotland through extensive collections built up over more than two centuries. Displays of the collections can be seen at six sites.
http://www.nms.ac.uk/

Ohio Coin Expo brings coin dealers and coin collectors together at the greatest coin shows on earth - US coins, foreign coins ,ancient coins,currency,gold,silver,bullion,numismatic books and jewelry.
http://www.ohiocoin.com/

Stamp and Collectibles Expo
http://www.santaclaraexpo.com

National coin, stamp conventions with over 300 bourse tables and auctions. The Santa Clara Show is held every April and November.
http://www.santaclarashow.com/

Torex? Coin Show and Auctions - Explore this up-to-date show guide with a calendar, dealer listing, special events, video, and more.
http://www.torex.net/