There are a lot of products in my niche to choose from so I am a little over whelmed. I have been trying various keyword strings on a few different sites to see how it goes. But there are so many to choose from. So now I am using a fairly large sets of keyword strings and weeding out some of the more generic keyword strings and, of coarse, I find more products all the time and want to add them. My CTR and ePCM are ok but could be better. I do know that changing the ad content is good for ad blindness but… am I using to many strings at a time? Do you think less keyword strings would be better? How many do you use on average? Are your Keyword strings calling certain products by exact name or do you use generic keyword strings or even dynamic to your page title? How is that working for you? Oh, and how do you dynamically add your page title to the code?
I've used 10 keywords for an ad before but I generally keep down to 4 ro 5 nowadays. If I have loads to choose from, I would seperate them into multiple groups of diverse products (ie no duplicates or just one brand etc...). Then I would change the set every week or so just to be in control of what ads show so that I can track them better. As for the terms themselves, I try to be as specific as possible because I find that if it is too generic, then I will get a completely different product when chitika decides to add anothere merchant or something. I use blogger so I do this to stick the post title as my keyword: ch_query = "<$BlogPostTitle$>"... erm... I think that is the correct blogger tag but I guess you get the idea
I did start going more with exact title of products because I notice sometimes when I didn't and just used a few keywords I would get the same product but with no picture but with the exact wording of the product the picture appeared. Same merchant for both... I still use some generic keywords too as there have been some that have paid rather well. Also, I track both channel and keyword strings... and I have noticed the past two days in my channels some keywords have plus signs between the keyword in the string and most just spaces between the words. Anyone know what the differance is? I have seen the price of the same keywords with the plus signs be high and lower than with out and it's the only time I have yet to see a varied amount with the same keywords. I write my own code for the most part. I have .shtml and .php. pages
I use my post titles in my product blogs and this completely rocks and get the highest CTR for any of my channels. On non product related sites I find it takes a bit more work and I set keywords more manually to related products to my topic. Takes a bit more tweaking over time but I find it works well. On sites with a very high repeat readership I tend to rotate ads more regularly than on sites with search engine traffic coming through.