The best places to get first hand information on crypto news is from reputable crypto sites and platforms and there are a couple of them that are trusted. This Bitcointalk forum is a place where you can get first hand information about crypto news, members are very generous to share what they know and what they've heard, you can visit the altcoins discussion board for information about new projects. The crypto sites that you have mentioned are some of the places to get crypto news, although it is good to get a crypto news from more than one outlet to be sure of it's authenticity.