Launched: 2011

Members: 80,000,000

Alexa Rank: 1,886,408

Launched:1997

Members: Undisclosed

Alexa Rank: 441,824

Launched: 2011 (as xxxMatch)

Members:1,500,000

Alexa Rank: 688,876

Launched: 2006

Members: 2,000,000

Alexa Rank: 183,233

Launched: 2013

Members: 3,000,000

Alexa Rank: 90,722

Launched: 2006

Members: 800,000

Alexa Rank: n/a

Launched: 2004

Members: 750,000

Alexa Rank: 297,306

Launched: 2003

Members: Undisclosed

Alexa Rank: 71,558

Launched: 2016

Members: Undisclosed

Alexa Rank: 315,576