Blue Nile, a leading diamond ring online retailer. I vaguely remember one of my friends bought the wedding ring from them a while ago (before the company went public in 2004). The company has an interesting story: the founder went to a tradtional jewery store to buy the ring for his financee, he felt he was not treated well by the associates. So he did some research and started his own venture.
The Knot, I heard this name from Jim Cramer, the host of CNBC’s “Mad Money”. One of the founders by a Chinese American (husband). He started the business with his wife. The reason they started is when they were gettting married, they found the whole thing is just too overwelming. So they started this web site to help people “to be married”.