webpundit - 3:58 pm on Apr 10, 2005 (gmt 0)

The benefits you can reap out of Atlas depend on the number of keywords you plan on advertising upon at the various search engines.

Atlas is good for a rules-based approach like "keep all my keywords on position #2" or "keep the max CPC on all keywords at $1.50." Also, plan on using Atlas only if your number of keywords is lower.

If you're more interested in bidding according to ROI on various keywords, we've found Efficient Frontier to be a very good investment. We settled upon Efrontier after a lot of reasearch and evaluation other service providers like Did-It etc. So far, no complaints.

I hope this helps!