The review also noted that men were still the aggressors when it came to dating, at least online.
One 2010 study of 6,485 users of a major online dating site found that men viewed three times more profiles than women did. Men were also 40 percent more likely to initiate contact with a woman after viewing a profile.
But one online dating service says the science is somewhat irrelevant -- it's the matches that matter.
Brad Weisberg, co-founder of Chicago-based JMom.com, said his site uses "old-school traditional values" to make matches. It charges between $10 and $18 a month for a subscription.
Jewish mothers can post photos of their families and look for commonalities in their children's education, values and personalities.
"When I talk to my mom and dad, they tell me that when they were growing up, they stayed local," Weisberg, 30, whose own mother pried into his online dating life and gave him the idea for the site, said.
"Today, it's the exact opposite," he said. "People are working longer hours, and it's expensive to date. It's not as easy, and this is another avenue to meet people."
Weisberg said he doesn't "discredit" the study, but "every website you go to there's likely been a marriage -- something's gone right for that to happen."
The JMom has an upcoming wedding. And there are other "success" stories.
Dr. Elana Katz met her fiance of three years on Match.com when she was in medical school in Philadelphia.
"We both had a week left on our memberships and were pretty fatigued from online dating," she said. "To make matters worse, the restaurant we went to was awful."
But later they bonded at a live jazz club and when Katz was transferred to Seattle for a medical residency, her fiance eventually quit his job and joined her. They will marry in June, "with his mother's diamond," she said.
According to a two-year study at Stanford University, from 2007-2009, 61 percent of all same-sex couples found romance online, and that number is rising.
Rex Isenberg, a 24-year-old classical composer from New York City, met his "wonderful boyfriend" of more than a year on J-Date.
"I was skeptical at first, but [my cousin] persuaded me to do it by telling me that she met her husband on J-Date, and that they have been happily married for nearly 10 years," he said. "I told her I would try it for one month, and if it didn't work, I would revert to traditional methods of seeking out dates."
Within a month, he met his soul mate, a researcher at MTV, who's also 24.
Meredith Eschauzier of Weymouth, Mass., now the mother of a 2-year-old daughter, has her own happy story. She met her husband, Ryan, a high school teacher on eHarmony.com.
"The questionnaire was lengthy, but I didn't mind filling it out and being completely honest," said Eschauzier, 34. "I don't think I chatted with very many people before Ryan."
They talked for hours when they finally met and have ever since.
"As for 'soul mate,' I don't really use that term," she said. "But he is the perfect match for me. Our personalities complement one another. We grew up in similar types of families, had similar educations, views on life, senses of humor. We are very happy."
As for Ilana Friedman, she hasn't given up on Internet dating but agrees with the researchers that "there is no science behind it at all." But she believes it works in a busy world.
"It's easy," she said. "It takes three minutes to put together a profile. People are so career-focused in New York, and it's kind of isolating," she said.
"They go out on the weekend with a friend and have a good time at a bar and get trashed. They might meet someone and hook-up, but not date them. "I have a girlfriend who gets online after every breakup just so guys can boost her confidence," she said.
Friedman said her frogs won't stop her from using OK Cupid.com, which is free. "I dated omeone who was the potential love of my life last year," she said, "though it didn't work out."
And the online matches have given her great fodder for her career -- on April 10, "Kissing Frogs" opens at the Laurie Beechman Theatre in New York City.