If there’s something new and great going on in your industry write about it! You can talk about anything that’s current or past information. But there is a wrong way to do it. You can’t republish anyone’s content. You can make it your own content by putting it into your own words though.
If you Google something and copy and paste it into your you can get busted with the duplicate content penalty. This is because the search engines don’t like copies of the same information they only like the original content, story, news, etc.
But you can put that news into your own words and write about it. If you can’t think of anything try Google-ing for some news and then rewrite your own version of the story. Or research to find out what everyone else is saying on the Internet and provide your opinion along with it.