Swanny007 - 5:08 am on Dec 16, 2008 (gmt 0) That's my experience anyway.
I've used both for over a year and Kontera performs better and pays more. Vibrant was "all talk" about 6 months ago, made a promise about some big advertisers and big money and it all fell through, they wasted my time. Kontera has been good to me this year, no complaints with them.
That's my experience anyway.