I believe every Techstars batch does a tools survey across batch companies (at least R&#x2F;GA Techstars in NYC did) then emails everyone the summary with bar charts.<p>The one I have is mostly about analytics, sales, and support tools, and unfortunately repository hosting wasn&#x27;t a question asked.  I also wish they would make this data source public so others could see shifts early -- for example the wave from HipChat to Slack would have been very visible.<p>Perhaps StackShare might be the closest open source of similar data.<p><a href="http:&#x2F;&#x2F;stackshare.io&#x2F;code-collaboration-version-control" rel="nofollow">http:&#x2F;&#x2F;stackshare.io&#x2F;code-collaboration-version-control</a>