Before you hit me with your keyboards, give me a chance to explain. I’m over twilight as much as the next person BUT it is a really good case for the public sphere and how something can cause so much debate. Firstly, the public sphere is where people can openly discus issues and ideas. The Internet has become the most popular place for these discussions of increasing variety; Politics to technology, movies to health concerns.
Look at the debates on the Internet about twilight. As soon as those books were released Fandoms were screaming out for team Edward and team Jacob. Yeah great no one really cares about that but there still was a lot of debate caused over it. As any good shipper worth their keys, they began to write fan fictions (Shipper: the term “shipper” comes from supporting a ship. To ship something means a person wants two characters to get together and/or shows support for two characters already together – Urban Dictionary) One writer in particular gained massive popularity for her twilight inspired fan fics, so much so that they were made into our beloved 50 shades of grey.
50 Shades of Grey changed the landscape of the literary world, being placed at #1 for 50 weeks straight on some best-seller lists. What has been the impact on the public sphere due to the books popularity? Fans trying to recreate scenes from 50 shades of grey, have in many cases had very damaging effects on their relationships:
British woman is divorcing her husband after he refused to re-create scenes from E.J. James’ best-selling novel…”The woman had been reading the book and wanted to spice up her love life,” the wife’s attorney, Amanda McAlister, said. “She thought their sex life had hit a rut — he never remembered Valentine’s Day and he never complimented her on her appearance. So she bought sexy underwear in an attempt to get her husband more involved. She said, ‘Let’s make things more interesting.” 
If you were to Google 50 shades of grey how many results would you get? When I googled it 83,700,000 results were found! Articles like:
What does the popularity of 50 Shades of Grey Say about our Sexuality
Why women Really like “50 Shades of Grey”
Explaining ’50 Shades’ wild success – CNN.com
50 Shades of Grey is best-selling book of all time – Telegraph
50 things I hate about 50 Shades of grey
And its about to be reintroduced to the public sphere in even more formats: a movie, soundtrack, television show, even a musical have all been suggested if not already in production. And just think all of this was started because Twilight was introduced to the public sphere.