I want to start an online dating business. Any hints/tips? Anyone willing to invest in this?

don't u'll fail!!!

you are about 10+ years too late there have been dating sites around for years. unless you can guarantee to screen every single client who registers on your site to check if they are scammers or not your business is almost certainly guaranteed to fail.

Unless you have uncovered some sort of untapped market (perhaps a unique fetish and so forth) you will almost certainly fail.

Companies like eharmony spend upwards of 20 million a year on advertising alone. The amount of capital you would need in order to compete would be astronomical.

What fabulous or unique idea or approach have you come up with that would make a dent in the core market for the well-known services like match.com, eharmony, etc?

i have a very good advice for you, try doing something else like setting up a beauty shop. It's a better idea.

I would research eharmony or match.com and see how they got started!

Research,research,research,do not take action until you have researched everything about what you plan to do.Then stick with the plan for a set period no matter what to get it off the ground.Good luck!!

Just do it and see, but it's not for me.