Maybe Next Time If your business went bust, could you start all over again? They did.

For some web entrepreneurs, once was enough. But these visionaries, who saw their dreams burst along with the dotcom bubble, are using those lessons to give the Web 2.0 economy a whirl.

Michelle Long, 35
Location:Bellingham, Washington
Then: Before going bust in 2001, World2Market.com raised several million dollars from investors for its idea to link entrepreneurs from developing countries with buyers in the U.S.
Now: Sustainable Connections is a nonprofit social network started in 2002 to encourage the growth of small businesses that have embraced sustainable business practices. To date, the group has 600 business members.
Why she's at it again: Long, with her husband, Derek, 38, decided to apply some of the philosophies of World2Market but bring them a lot closer to home. Rick Dubrow, 56, came in as a co-founder.
Lesson learned: Don't try to build a brand overnight. Long says World2Market struggled due to consumers' lack of awareness. Moreover, not many consumers were used to making purchases online. Says Long, "We spent the money too early."