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+ Ownership of the material remains to user
+ service Service and its instructions are multilingual
+ Largely used in higher educational institutions
- - - Anonym use not possibleData security and data protection
- Frequent changes of the data policy or the terms of use
- Material can remain in the service even if user have removed account from the service
- Facebook remains the right to use user material in large extent
- Anonym use not possible
- Personal information can be used for marketing purpose
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