Building Huge Keywords List

stussy5555

HNIC
Dec 12, 2007
821
10
0
Guys, I need some input on building large keyword lists for Google, Yahoo and MSN. The dilemma I have is that I am going to be building a couple hundred campaigns, and about 70,000 ad groups within those campaigns for this niche. I want to make the process as seamless as possible across all 3 platforms (as we all know their CSV uploads are all different).

Would you build the campaign for upload into Google's platform and then somehow convert it to the correct CSV file for Yahoo and then MSN? Which CSV formats are easier to convert to the others?

Bottom line, I am trying to build this god dam list 1 time and 1 time only (since there are 60K ad groups plus). And when this list is built, it needs to be easily portable to the other platforms.

Your ideas welcomed.