patient2all - 4:09 pm on Mar 9, 2005 (gmt 0) patient2all
Personally, under that scenario, I use two adgroups with the same keywords and the same bids. Then after a period, it's clear how much you spent for each company vs. how they converted. Otherwise, you still have that element of randomness that Suzy suggested. With two adgroups, you know exactly who's delivering and on what keywords.