Travolution@ITBPhoCusWright - Cost per what?

If you have trouble translating CPC, CPA, CPO and other acronyms in the online advertising world, don't fret...you're not alone.

Even the tried and true techies attending the PhoCusWright at ITB conference seemed a bit tongue tied when trying to decipher what was what.

Is CPO the same as CPA?

Is CPC better than CPA?

What's the future of CPO?

The short answer is it doesn't really matter...at least not to the meta search engines.

As Paul English, co-founder and chief technology officer of Kayak.com elegantly summed up, "We'll take money any way you want to give it to us".

Sounds like a good business model to me.

Tricia Holly Davis, chief writer, Travolution