CoinFacts is great. You can link to many auction results directly and see past sales for a specific issue from many different auction houses. They have a great photos as well. Too bad it is not free. I'm a fan of Heritage as well. Bowers and Merena has become much more difficult to navigate past auctions.
http://www.worldcoingallery.com/ This was the first site I used to help me identify coins from around the world and it gives a loose idea of their values.
Right here. Here and the other three forums I visit. There is an immense amount of knowlegde of these here forums!
http://www-cm.fitzmuseum.cam.ac.uk/emc/emc_search.php The Early Medieval Coinage Database. Not terribly helpful if you don't already have a good idea what you're looking at, but extremely useful if you do. In the records are not only most coin finds for the past ten or so years in England, but every entry in the Sylloge of Coins of the British Isles (over 60 volumes now!) My favorite part is the mapping/graphing tool. When you search a particular coin type, the website can generate both a map of the coin finds AND a histogram of the types.
I really prefer a paper book to read and study, but You have to have this from Stella's if you do't mind searching and reading on the monitor. http://www.stellacoinnews.com/index.php/reference-books/ I think I will bookmark this one for all of the DD/MD questions http://www.stellacoinnews.com/index...ng-die-doubling-from-other-forms-of-doubling/ by J. T. Stanton
I agree HA is one of the best resources out there. Most of the sites I use have been mentioned, but here are a few more. Morgan Dollar; Strike (The top of the page has links to other references) How To Grade Morgan Dollars (For circulated coin grading this is a pretty good link). Numismaster.com (Numismaster's archive has tons of great articles). Toned Coins (Sunnywood's thread on toned coins is a fantastic resource).
Thanks for all the HA.com love, folks! One that I like (not that I can afford to collect these) is www.uspatterns.com. I do not own a Judd reference, but occasionally need to know something about patterns. This site is as good as it gets for those.
I frequent parthia.com which is the best resource for fans of Parthian and related coins. I'm very pleased to now own one of their reference coins for Orodes II, purchased through a Vcoins dealer. Forumancientcoins.com is also an invaluable source for info on ancients since they archive all their past sales. There's lots of additional reference material to be found there, making it a nice little online research library.
this place is great for pretty much everything. but i use the pcgs photo grade to learn grading. i use ebay sometimes for prices. i use the site below for prices, they are very close(if not exact) to what i see on the bay and at show. the prices are not upgraded enough with silver and gold, so you got to do the adjustment to spot yourself. overall is a pretty useful place. http://www.coinstudy.com/
Great thread. I got a couple more sites in my favorite list now:thumb:. This site has a little bit of everything, Identifiers, mintages, errors, http://coinauctionshelp.com
The first edition of the Encyclopedia of Roman Imperial Coins has just be released for free online under a creative commons license here. I haven't done much with it yet, but it'll probably be a very useful resource for collectors of Roman Imperial coins.
For world coins, my favorite resources are 1. Numismaster.com; 2. MA Shops (A gigantic cyber coin mall located throughout Germany. I use it like a catalog rather than a place to purchase) 3. DelCampe, EU version of ebay. 4. Heritage Auctions. Problem is identification. If you don't know what you're looking for, Heritage is no help. If you use MA Shops, get yourself a google toolbar. When you arrive on site, Google will automatically translate for you. MA has hundreds of thousands of images, with prices and detailed descriptions. Many of my friends have found this resource invaluable.