Instead of eBaying or Craigslisting the baby stuff you don't need anymore, a couple of Bay Area start-up guys want you to Zwaggle it:

Privately funded Zwaggle, based in San Francisco, was founded last year by two guys who don't have kids. Andrew Hoag, an engineer and co-founder, said that at the time, he was surrounded by friends and family having children and noticed all of the extra stuff they accumulated but didn't necessarily use. For that reason, the idea seemed like a no-brainer.

"There's this massive, passive inventory of kids' stuff already being Zwaggle'd in the real world," Hoag said. On the Web, he said, more people can find each other.

Going green, one crib at a time [news.com]
Zwaggle [zwaggle.com]