Lastminute.com founders Martha Lane Fox and Brent Hoberman were the poster girl and boy for the original dotcom boom, when they both became multi-millionaires from selling their Internet travel agency.

Brent, who is now Lastminute.com's part-time chairman, believes things are easier this time around.

He told The Guardian:

"There are more people on the Internet, people are more comfortable buying online and the technology is cheaper."

The pair are now using some of their millions to invest in dotcom start ups and encourage new businesses.

Martha added that entrepreneurs with an idea should "be obstinate. Don't be put off by rejections and set-backs".