Centreurope.org offers business, cultural and tourist info for Central and Eastern Europe.

Dedicated websites are available for 10 countries and for the whole region.

Bulgaria Hungary Romania
Croatia Lithuania Russia
Czech Republic Poland Slovakia
  Latvia Slovenia

The sections for the other countries have not been updated recently. It is available here:

Albania Estonia Serbia
Armenia Georgia Ukraine
Azerbaijan Latvia  
Belarus Lithuania  
Bosnia and Herzegovina Macedonia  

More pages : Balkan