+1 for the request, though I am skeptical you can find good ones. I am subscribed to PMHQ blog. I mostly find it to be corporate people writing great things about their own products. Nothing mostly which talks of rubber meets road kind of stuff. I would gladly read two kinds of product blogs
1) Failure post mortems.
2) Things which explain a startups decisions step by step. Eg: Why did Uber choose marketplace model instead of a fleet, how did zapier decide to pick a specific niche while starting off, etc
>> Eg: Why did Uber choose marketplace model instead of a fleet, how did zapier decide to pick a specific niche while starting off, etc
For this type of thing the easiest thing to do is look for interviews with the founders online, either in youtube or just old articles. You would be amazed at what you can find.
>> 1) Failure post mortem.
Not aware of any companies that do decent failure post mortem but you can find lots of startup failure post mortem on sites like this one[0].