85.59.B - Other out-of-school forms of education, not elsewhere classified
18.13.Z - Pre-press and pre-media services
47.91.Z - Retail sale via mail order houses or via internet
58.11.Z - Book publishing
58.19.Z - Other publishing activities
58.21.Z - Publishing of computer games
59.12.Z - Motion picture, video and television programme post-production activities
63.12.Z - Web portals
63.99.Z - Other information service activities not elsewhere classified
70.21.Z - Public relations and communication activities
73.11.Z - Advertising agencies activities
73.12.C - Intermediation in the sale of the place on advertising aims in electronic media (internet)
85.60.Z - Educational support activities