It is often said the only constant in the world of hi-tech is change - a fact that makes prediction notoriously difficult. But here three tech veterans give their view about what will drive change over the next 12 months and beyond.

There is little doubt that 2006 was the year that web users started to flex their muscle.

Although everyone is familiar with web giants such as Google, Yahoo and Amazon, the last 12 months have shown that their reign at the top is perhaps not going to last forever.

In 2006 it was YouTube, MySpace, Bebo, Facebook and many other social sites that grabbed the headlines.

full story: http://news.bbc.co.uk/1/hi/technology/6198125.stm