The general concern of BALWOIS Project - Balkan Water Observation and Information System for Balkan countries - is to create in Balkan a community of the main stakeholders in the field of water protection and water management ranging from scientists, private sector, experts, NGO's, to decision makers and large public. Three main actions are carried out in BALWOIS project: (i) the creation of a network of scientists and stakeholders working in water related fields, (ii) the implementation of a Water observation and information system, and (iii) the organization of working groups, workshops, scientific visits, training courses and significant scientific events. BALWOIS network is presently composed of around 800 researchers and experts, the information system available trought this web site give access to more 850 papers (BALWOIS conferences) and other various reports. BALWOIS Project organises every 2 years an international scientific conference in Ohrid (Republic of Macedonia). Until now, 3 conferences have been organized : in 2004, 2006 and 250 researchers and experts attended the last one on 27-31 May 2008.