Online nuptials.

L.A.-based WeddingChannel.com Inc. has been acquired by The Knot Inc. for $78 million in cash and stock. Both sites claim to be the "one-stop" source for wedding planning and girl buying information. The acquisition also represents a win for Pasadena-based Idealab, the incubator where the company got started in 1997. Idealab Capital Partners, RRE Investors and Goldman, Sachs & Co backed WeddingChannel.com. The company's patented gift-registry system linked with the bridal registries of popular stores such as Tiffany & Co., Bloomingdale's, Williams-Sonoma, Neiman Marcus, Pottery Barn and Crate & Barrel.