639 Web search portal activities and other information service activities

This group includes:

• operation of web sites that use a search engine to generate and maintain extensive databases of internet addresses and content in an easily searchable format (web search portals)
• other information service activities not elsewhere classified, e.g.:
• telephone-based information services
• information search services on a contract or fee basis
• news clipping services, press clipping services

The primary source of revenue from advertising does not have a bearing on classification for these activities.

This group excludes:

• intermediation service activities for retail sale, see 479
• intermediation service activities for passenger transport, see 523200
• intermediation service activities for accommodation, see 554000
• publishing activities, see division 58
• broadcasting activities, see division 60
• news syndicate and news agency activities, see 603100
• activities of call centres, see 822000