In my time playing World of Warcraft I was fascinated by a website called The Undermine Journal. Completely searchable market data with various graphs and statistics. Basically an almost indispensable resource for everyone remotely interested in the economy of WoW. Sadly there were currently no plans to make it available to EU players. Acy from the EU server Hellscream changed that singlehandedly and seemingly overnight. He created a nice, clean and lightweight site, http://www.wowtrader.org.uk/, that’s easy to use and provides many of the features I’ve talked about above. But instead of crawling the Armory/Mobile AH webpages 24/7 it depends on crowd-sourcing (i.e. user submitted data, by uploading a single file from an Add-On) so it will only be as good as its users make it. Acy keeps everyone updated about the project on his blog. He generally seems like an approachable and competent fella so I’m confident it will be a success with a little help from the community.