That is what is there in my bins, perhaps, my treasures will be useful to someone.
This is the basic sites, which you probably know, but I still give the address - for beginners:
http://www.askart.com/AskART/index.aspx
http://www.artnet.com/
http://web.artprice.com/start.aspx
It seems that on this site are listed
all the existing auction houses - to be honest, I have not tested, but most of these houses there is a lot like dogs nerezanyh: D
This French site, but you can go and the English language. In any case, in French on the striped top, left to right, it is written: "Upcoming auctions" (Ventes à venir), "Past tenders" (Ventes passées), "Auction Houses" (Maisons de ventes), "Alert and services" (Alertes & services), "Find a work of art, subject, author" (Rechercher une oeuvre, un objet, un auteur):
http://www.auction.fr/FR/index.php
Ability to view in English, French and German. Search artists by name and monogram, a list of signatures, a calendar of future auctions. Artists too much as ...

:
http://www.findartinfo.com/french/br...sp?letter=R122
The newspaper devoted to Russian art, which publishes Nick Ilyin, European representative of the Guggenheim Museum, is not very interesting, but why not learn, they say the same "from pribtka head does not hurt":
http://www.newsletter.net.ru/# 000 (address of the last issue, but the page has links to all previous issues)
Blog Matthew Bown (Matthew Bown), dedicated to Russian art:
http://www.izo.com/
The latest issue online magazine "The Market for Contemporary Art" (with links to previous number):
http://j-volfson.livejournal.com/