On 21 and 22 June 2011 Mr Momtchil Vassilev (Director of the National Focal Point) and Antonia Bancheva (an expert – “Epidemiologic Indicators”) took part in A Regular Annual Expert Meeting on the indicator “General population surveys”, which was held in Lisbon, Portugal. In the program there were 6 working sessions marked: Progress of the International Partners and Organizations, European Review and National Presentations of Actual Surveys, Development and Methodological Issues, parallel working groups including presentations and a general discussion, A Survey and Understanding of the National Differences, working groups. The experts from the NFP took part in two parallel working groups. In the first one data for cannabis use were reported by 5 states. The focus of the discussion of the second working group was the topic of the on-line surveys.