Angel Financing Angel Investor Founder Product Development 
Growthink Blog
MAY 10, 2012
Take the founder of Wrigley's chewing gum, who began selling baking powder and soap door-to-door and giving away gum as a bonus before discovering people wanted it a lot more than soap. That is, you'll use the funding to build a product or service and prove that customers want to buy it.
steveblank.com
JULY 8, 2011
AgileZen – project management visually see and interact with your work Kanbanery – Simple online team or personal kanban board LeanKit Kanban – Great for visualizing work of product development Kanban Pad – “Nice and lean” and free online Kanban tool Banana Scrum – A tool simple as Scrum itself.
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