I stick on to Google Adwords , YSM , Adcnter and looksmart. But i tried some second tier search engines like kaanoodle , goclick , 7search , bidvertiser and i did not make any lead. I think their clicks are false. Have any one of you guys tried them? What was your return? If it was positive , please share here . I want to know where i've gone wrong?
I have tried every 2nd, 3rd and possibly 4th tier service I can find. Some work great, many don't. You just have to try them yourself with your particular offers to see. Be sure your track your clicks with a 3rd party service when testing low quality networks though.
vinny lingham has a blog post related to your question. what he said is very true and for now don't plan to test another networks. i tried ask and 7search but don't worth my time. if you are the "set a campaign and forget it" type then you will probably want to try all these networks. but think about, what do you have now at adwords or ysm is all you can get? can you improve it? i am sure you can. if you can improve your ctr, your conversion rate, decrease the bids, get rid of/manage all your unprofitable keywords... your profit can rise even exponential. this is where you must put all your efforts. besides this the major problem with 2nd tier networks is the click fraud... i am sure there are many people having success with these networks, SonicReducer has, but all that matters is if at the end of the month when you draw the line you are satisfied with what you get from your time spent with those 2nd tier networks.
yes you think you have to watch your stats with Y.MS and G it is 2 times as much with 3rd tier networks as they are much more "flexible" with traffic and what counts as a click.
The quality of the traffic never seems to be as good as the top tier ppc sites. There are a lot of affiliates for the lower tier ppc sites where you always get a majority of them frauding.