But the Web in particular is stepping up with free sites such as Dontdatehimgirl.com, Truedater.com and Manhaters.com to “out” the liars, marrieds and those who fib about their age, height or weight. “There’s a thin line between putting your best foot forward and not being truthful,” says Tasha Cunningham, founder of the Miami-based Dontdatehimgirl.com. “I think it’s the biggest dilemma the online dating world faces.” Cunningham started the company in 2005 after dating a man for almost five months who was in the process of getting a separation. He failed to share that with Cunningham. The site claims 1 million members and receives 400,000 hits a day. Cunningham estimates that women have entered information on 30,000 men. While the site is for women, 20 percent of members are male and join to participate in the He Said She Said forum. Members of the site post the full name, city and photograph of the creep they say wronged them, along with an at-times detailed description of exactly what said creep did. “It’s the MySpace of dating and relationships for women,” Cunningham explains. She even hears from women who’ve used True.com, which charges daters a premium membership fee to screen for marrieds and felons. On Dontdatehimgirl.com, women considering an online date, or just curious Web surfers, can read about men by plugging the men’s names into a search engine. They can e-mail the author directly for more details. And yes, men who disagree with what’s written can submit rebuttals. Male focus groups axed Cunningham’s idea for Dontdateherman.com, a similar concept for men to avoid female liars, but Greatguystodate.com will be up by June 1. “It’s wonderful men who nominate themselves or are nominated by the women in their lives,” she says. There is a halo over the “W” in Womansavers.com, also known as Manhaters.com. On this site, women fill out questionnaires about a man’s ego, trust issues and other datable qualities. A rating from zero to 122 is issued, and the average is a 23. Choose a longer questionnaire and answer questions with “this man is a complete slob who you have to pick up after” or “in the early stages, he’s really great, but once he has you hooked, all the relationship effort falls on your shoulders.” 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Beware of Gregory from Oakland. He is not single. Rather, he is married and cheats on his wife Saturday nights before church, no less. Not only that, but “he dyes his hair and lies about his age,” according to a post by his anonymous ex-girlfriend on Dontdatehimgirl.com. Michael of Fremont? His former girlfriend reports his bad temper, sexual deviance and marijuana addiction on the same Web site. “Don’t fall for his tricks because he will try and steal you blind,” she writes. “Ladies, if you see this one coming, run the other way!” And Jerome, the clubber from San Jose? He is a walking STD, says a recent caller on local radio station 94.9 FM’s nightly segment “Do Not Date.” Uncovering a potential partner’s lies or bad behaviors isn’t easy, especially in the online dating world, where well-written profiles or suave photos are hardly guarantees of a good heart and a clean record.