Let's analyse this and see if it ticks the right boxes in terms of the desirable features of an opening sentence in IELTS Task 2 writing.
Well, assuming that the essay is about social media, here we get some examples of social media platforms. So far so good!
The time expression 'in recent years' suggests that we're going to read about some recent issue relating to social media. We're doing well.
I don't think our reader will find this interesting. The writer doesn't say anything interesting about this recent issue, except that it '..has become widely discussed in society.' The problem here is that just about any topic can be said to be widely discussed. This is not specific enough!
To satisfy criterion 3 (above), we need to say something interesting (and therefore unique) about this topic. For example:
This will be interesting for the reader. It will make the reader consider his own use of social media for news access.
This will also be interesting for the reader. The reader will think: 'Hmm. It may be popular among younger people, but do I like it?'
Interesting. The reader consider these new and interesting ways to communicate, including the ability to communicate news.
When writing opening sentences in Task 2 introductions, try to imagine what might be interesting to the reader. If this topic is indeed widely discussed, then say why it is widely discussed!