So apparently Jennifer Aniston ended her relationship with John Mayer because he didn’t have time for her, but did have time to keep updating Twitter. Meanwhile Ashton Kutcher makes national news in several countries after posting a Twitpic of wife Demi Moore‘s bikini-clad bottom.

For those of you with an inquisitive nature, the image is still available.

Besides the gossip angle of celebrites on Twitter (For that I’d recommend @heatworld, one of the titles I work on), it raises interesting questions about both the nature of celebrities when they’re increasingly interacting online, and also the nature of relationships playing out in public.

Will Twitter mean more ‘real’ celebrities?

Twitter undoubtedly gives the appearance of closing the gap between the public and celebrities, even with follower numbers of top stars reaching huge numbers (hundreds of thousands follow Ashton, Demi, and John etc). But does it also put more pressure on celebrities to produce content which previously would have been filtered by their relationship with the press?

Rather than deciding to work with the press and paparazzi, or spend their time trying to hide from the media, will celebrities feel they need to increase their popularity by updating on an ever-increasing basis, and perhaps giving more insight into their lives than they might have usually allowed, in the same way as ‘regular’ people?

Will it also start to change the current mainstream obsession with style over substance, leading to a greater popularity of celebrities capable of creating content of interest?

What about relationships?

As more couples and families are likely to appear on Twitter, as they have on Facebook, it could have serious implications for the people involved. Already there have been tragic cases involving social networking, such as in the UK, when a man murdered his estranged wife after she changed her Facebook status to ‘single’. But Twitter could be potentially more problematic due to the space it occupies between instant messaging and previous social networks.

The nature of @replies, and the speed of interaction could see public arguments occurring when couples monitor who their partner is interacting with.

Will we all have to think about not just how we present ourselves, but also how our families and relationships are presented and available online – in the same way as celebrity couples have needed to manage themselves in the past. And will that effectively flip for those celebrities who have a happy and interesting partnership, as they’ll benefit from the ease with which they can reveal details and interact publicly online?

Is this the blurring of the celebrity continuum, so that the megastars at the head of The Long Tail, and those in the tail, are seemlessly joined without some of the segregation between those who are labelled as famous and those who aren’t?

With Twitter just celebrating it’s third birthday and social media still in the troublesome teenage years, the pace of change and the effects it will have are only going to accelerate in the future – it might be worth checking with your significant other about their online plans now, rather than later!