Nathan Elkins' blog has a story about the WildWinds coin identification web database being hacked soon after the untimely death of its owner. See: http://coinarchaeology.blogspot.com/2009/03/wildwinds-hacked.html and http://www.wildwinds.com/coins/
I agree with him. This is very sad. This was obviously a labor of love that benefited not only dealers and collectors, but scholars too. It also provided some provenance information for the coins that were listed.
Luckily, there are still other dedicated individuals out there who have compiled very fine web databases of coins. For example, here is an excellent database about the coins of Magna Graecia and Sicily that has been around for over a decade. See: http://www.magnagraecia.nl/coins/homeFrameless.html
Coins make particularly good subjects for web databases. Today, most databases list coins from commercial sources such as auctions as the images are already available. Still, as the technology becomes more accessible, I hope there will be more databases of coins found at specific archaeological sites as well as ones housed in museums. The ANS has such a database, but images are only slowly being added. See: http://numismatics.org/collection/accnum/list More can and should be done academically, but, of course, that takes time and money. Perhaps, this could be one area where collectors, dealers, museum professionals and archaeologists could cooperate for purposes of preserving and spreading knowledge of ancient coinage.