Funny considering those sites have official telegram groups for you to get the same news, without having to open a browser.
Within Telegram itself all you have to do is use search for finding groups or news you want delivered. So, kinda like RSS next generation.
Indeed Telegram has two types of groups: Read only for things like news, and discussion groups. There are also bots, LOTS of bots, many are free open source... Like the rest of internet, Telegram has lots of good and bad, you have to discern what is worth your time and what is not. I like how many exchanges and asic miner companies have official groups in there, but there are also scammers trying to impersonate official support. Of course ICOs and altcoins have heavy presence as well.