It took eight years for Carley Roney and David Liu to fall in love after meeting as undergrads at NYU.
But after they reunited at a graduate school party, the pace picked up. Two years after they got married, the pair went into business together. The Knot, founded in 1996, was their second venture.
It's been a bumpy road with some dark times during the tech bubble burst, but now the company is publicly-traded and employs 650 people. The founders say 80% of all women who are planning a wedding sign up for their site.