eHarmony is TODAY August 22nd, 2011 a 11 years old obsolete site, a HOAX.
You cannot stay 11 years in the Online Dating Industry without innovating, saying "scientifically proven" and eHarmony does not have any proof (peer reviewed scientific paper) and scamming members with automatic rebilling.
Parship is nearly 11 years old obsolete site, a HOAX.
True is a 8+ years old obsolete site, a HOAX.
PerfectMatch is a 8+ years old obsolete site, a HOAX.
Chemistry is a 6 years old obsolete site, a HOAX.
Meetic Affinity (Match Affinity or Dating Direct Affinity in UK) a 6 years old obsolete proposal, a HOAX.
The PlentyOfFish Chemistry Predictor is a HOAX.
FriendScout24 BQ-check is also a HOAX.
Be2 game over, it was also a HOAX.
OkCupid, Zoosk, Badoo are only for fun dating, for entertainment purposes.
Actual Online Dating sites and many Researchers / Academics are fully intoxicated with different versions of the FFI five factor inventory / Big5 or other proprietary models instead (like Chemistry or PerfectMatch), to measure personality traits, and all of those tests are more simplified versions than the 16PF5 normative personality test.
WorldWide, there are over 5,000 online dating sites
but no one is using the 16PF5 (or similar test) to assess personality of its members.
Without offering the 16PF5 (or similar test measuring exactly the 16 personality factors) for serious dating, it will be impossible to innovate and revolutionize the Online Dating Industry
Obsolescence of Dating Sites offering Compatibility Matching Methods