ABOUT a decade ago, Cindy Gallop, a pixie-like businesswoman, said she began dating and sleeping with men about half her age. While their stamina and her experience made a good combination, Ms. Gallop said, she also discerned a disturbing trend: the boudoir moves of many of her young lovers seemed drawn entirely from pornography.

So Ms. Gallop, now 52, an advertising executive turned Web entrepreneur, took her findings to a TED conference in 2009. Easy access to Web sex sites, she told them, is teaching younger generations “that what you see in hard-core pornography is the way that you have sex.”

“As a mature, experienced, confident, older woman,” she added, “I have no problem realizing that a certain amount of re-education, rehabilitation and reorientation has to take place. ” As laughter rippled through the discomfited and rapt audience, Ms. Gallop unveiled a Web site, MakeLoveNotPorn.com, that compares what it calls the “porn world” with the “real world” of sex.

As graphic and funny as some of the language was, the site was mostly text. Now, Ms. Gallop is taking it up a notch with MakeLoveNotPorn.tv, a kind of YouTube for the erotically unabashed. The site, just a few weeks old and still in beta, consists entirely of videos uploaded by real people having what might be called nonperformance-like sex.