VC tweets is also a great signal. Not perfect, but great.
You can most tweeted startups every week here:
https://chartups.com/topstartups/
Re:Introducing Initialized Capital
by i__believe on Monday October 24, 2016 @07:29PM
(#12783840)
Great signal for what?
I'm sure the bigger VCs and accelerators are building interesting things in this space but I haven't found much that's open source.
As data points, AngelList and Crunchbase are good starting places, but the AngelList API is private and the Crunchbase API is paid.