Community support networks for safe dating
One can categorize social-network services into three types: There have been attempts to standardize these services to avoid the need to duplicate entries of friends and interests (see the FOAF standard).
Facebook and other social networking tools are increasingly the aim of scholarly research.
Some services require members to have a preexisting connection to contact other members.
The main types of social networking services contain category places (such as age or occupation or religion), means to connect with friends (usually with self-description pages), and a recommendation system linked to trust.
Huge number of ties technologically possible, but average number is limited, e.g., Facebook: 395 (Tong et al.
2008), Linked In: 149 (Utz 2016), XING: 121 (Buettner 2016c), Twitter: 150-250 (Gonçalves et al.