1. As a result, the topic is one of the highest priorities facing businesses and regulators in 2015.

2. Google Glass has been a topic of conversation among techies since news of it first arrived in 2012.

3. Google Glass has been a topic of conversation among techies since news of it first surfaced in 2012.

4. Either way, artificial intelligence will be a hot topic at CES 2016.

5. The topic has become hot over the past year and a half.

6. The case has quickly become a topic in the US presidential race.

7. He added that mobile device management has been a hot topic over the past couple of years.

8. The extent of the risk from local government debt has been a topic of hot debate.

9. Apple after the death of Steve Jobs would be a fascinating topic for a book.

10. The theory has been a topic of debate among activists and researchers.

11. The collections feature allows people to group posts by topic for their Home streams.

12. The first was that we stayed on topic, which is unusual.

13. Google uses the concept of a story box to group together articles on the same topic or event.

14. The only requirement was a passion for the topic and a willingness to practice.

15. The interface and news are organized by topic, not by any preference the user may have.