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Hacker News
How To Validate Product Ideas Before (And After) Building Them
https://training.kalzumeus.com/newsletters/archive/validating_product_ideas
26 comments
20/9/2013
Should I build this? - Instant Product Idea Validation Tool
http://quokka.sparkgenius.com/
9 comments
14/1/2013
Reddit
WebApp idea, build Alpha/MVP product or test market validity first?
https://www.reddit.com/r/startups/comments/8wjgcn/webapp_idea_build_alphamvp_product_or_test_market/
10 comments
6/7/2018
startups