Advanta, a credit card firm for small business, is running a big idea challenge at http://www.ideablob.com. Entrepreneurs and small business owners can submit ideas and win $10k. The first three weeks of the month each have a sprint that will deliver two sprint winners based on popular vote. In the last week of the month, these six sprint winners are joined by the two ideas that have gained most votes overall. In this last week, the winner is chosen and gets the prize. Apart from the prize to win, the ideas get reviewed and receive helpful comments that the entrepreneurs can use to improve their ideas. So even entrepreneurs that don’t win, get value from participating. Looks like a great way to get entrepreneurs starting their business, something that’s vary valuable in these economic times.