But now that broad-brush dating sites have saturated the market, niche players are growing ever more plentiful and popular, according to major market research firms that monitor the dating industry.
Whatever you're seeking, chances are there's a niche dating site for you. Singles on major sites like and have long been able to narrow their searches for potential matches, based on their preferences for height, weight, smoking habits and other personal details.
Here's a smattering of what's out there, be it new, intriguing or weird, or all three.
You can't judge a book by its cover, but you can tell a lot about a person by looking at his or her books.
At least, that's the idea behind this dating site, which went live last summer.
On this site, members with screen names befitting bibliophiles -- Book Bender, Ink Smudge, Lostin The Stacks -- peruse lists and images of one another's favorite page-turners.
Take, for instance, the 45-year-old man from Los Angeles who relished "Into the Wild" by Jon Krakauer."I can relate to the wanderlust portrayed in this book," the man wrote on his profile page, "as well as the integration of soul with pristine nature." Members of the site can click on the image of a book to see others who have enjoyed it.They can also receive alerts when a book that they love is mentioned by another member.And a "Literary Missed Connections" feature is in the works, as in: "I saw you reading Gladwell on the C train Thursday night. " There is only one answer on this nascent dating site for Apple product enthusiasts...." The hope is that if two people fall for the same tome, they just might fall for each other, too. The site's founders contend that Apple fans tend to have creative professions, a similar sense of style and an appetite for technology.As they put it, "We believe these are enough fundamental reasons for two people to meet and fall in love." To join the site -- which echoes the clandestine minimalism of Apple advertisements but is not affiliated with the company -- you must own a Mac. We Not every dating site is like Online Booty Call.com, where members adhere to "Booty Call Commandments" like "thou shalt get out before the sun rises" and "if someone cometh over whilst thou art here, thou art my cousin from out of town." Rather, there are dating sites like We Waited.com, for virgins seeking other virgins.