You could try PPC management companies, but they tend to be very expensive and you really don’t know who you’re dealing with, it could be some kid sat in their bedroom at their moms house – you get the idea..

One product I would recommend is here at http://www.ppc-management.org – it didn’t cut out costs by 90% as they claim to for some, but it did save us around 65% which is still pretty impressive, you just have to watch out then that Google and co don’t keep putting the costs up!

I have learned many invaluable techniques to using Googles Adwords and cutting the cost of several of my PPC campaigns including the, "make money online" niche which is very competitive.

There ARE certain things you can do to improve your rankings and thus increase your ROI, I have comprehensively reviewed the BEST route to take as I have below. Hope this was helpful!

I have spoken to staff at Google about this at an Internet Marketing conference and it seems that the best position to be in is around 3 or 4. The reasoning behind this is that people often visit the first 3 or 4 sites to check the results, they then either go back to one of the earlier ones, or more likely stay on the site that they have just visited. By aiming for the lower positions you may find that your PPC costs come down.

Also have a look at the phrases that you are targeting, are they broad or specific. For example, if you run dog training classes are you aiming at training (and therefore attracting people who are looking for training to become a teacher). In the past I have found that specific phrases have lowered costs and improved conversion rates for clients that I have run adwords campaigns for.

Hope this helps

Here is the case study that shows that $5k spent on conversion rate optimization provides 15x higher ROI than $5k spent on PPC: http://hiconversion.net/business-tactics/the-business-case-for-conversion-rate-optimization-cro/ .