No. 26 Meg Whitman, president and CEO, eBay

Last year's position: 13

Though down 13 places on the Agenda Setters list from last year, Meg Whitman's hardly losing momentum.

As eBay's growth has slowed, Whitman hasn't sat around - she's gone on the offensive with a string of ambitious acquisitions across the globe. The online auction giant is buying up both competitors and players that could expand eBay's horizons in ecommerce and take them places they've never been before, such as voice over IP.

After rumours that the likes of Google and Rupert Murdoch were sniffing around Skype, it was Whitman who stepped forwarded and sealed a deal with the VoIP starlet. Experts are split on how the union will work out in the long run but it certainly shows Whitman's guts and willingness to set, not follow, the agenda.

Along with buyouts, the year has seen eBay test the water for digital music downloads and fight back at the scammers using its name in their spam and phishing exploits.

The company that spawned the online auction phenomenon just won't be stopped - and it's Whitman who's leading the charge.