Set by the law · WP29 Opinion 2/2010, p. 4
Behavioural advertising
In plain English
Advertising based on watching people's behaviour over time, such as sites visited, to build a profile and show ads matching their inferred interests. The Court of Justice held that Facebook users cannot reasonably expect it without consent.
The official text
Behavioural advertising is advertising that is based on the observation of the behaviour of individuals over time. Behavioural advertising seeks to study the characteristics of this behaviour through their actions (repeated site visits, interactions, keywords, online content production, etc.) in order to develop a specific profile and thus provide data subjects with advertisements tailored to match their inferred interests.
the user of that network cannot reasonably expect that the operator of the social network will process that user’s personal data, without his or her consent, for the purposes of personalised advertising
Related
The official text is quoted word for word from the English version of the source named under it; only the version published in the Official Journal of the EU is legally binding. The plain-English line is Fino’s own summary, not legal advice.