What is a good place to look for news and announcements about AI start-ups?

I focus a lot on news about OpenAI and DeepMind, but I want to expand my news sources to cover some of the smaller companies that may have potential. I have heard of some start-ups through their venture capital rounds, so valuations give good insights into what to look for, but I want to look for the technological side. I know that news sources like TechCrunch and The Information have good coverage of AI start-ups, but what are other good sources?<br>Also, is there a good news source or aggregator or newsletter that focuses on AI products? It would be good to see what’s launching, what’s shutting down, and what’s existing and how it’s changing.