Adwords = YOU PAYING for advertising. Great idea. Yeah, Profit!! (for Google) Adsense = YOU GETTING PAID for advertising (clicks). Sounds like a better idea.
The duplicate content filter is for search results. It IS against Googles TOS to submit multiple ad units to the same keyword with the same site behind it, however if you have two sites you can gladly compete for adwords placement with yourself:-)
"We want to ensure that your keywords get a fair chance to run and that we do all we can to properly gauge their performance. We use a Quality Score to do this. Each keyword is given a Quality Score based on data specific to your account, including your keyword's clickthrough rate (CTR), relevance of ad text, historical keyword performance, the quality of your ad's landing page, and other relevancy factors.
Quality Score = keyword's CTR + relevance of your ad text + historical keyword performance + other relevancy factors
Your keyword's Quality Score and maximum CPC (at the keyword or Ad Group level) determine your ad's rank on Google search and content sites. (For the top positions above Google search results, however, we use your keyword's actual CPC.) Remember that improving the relevance of your ad text and keywords will increase your keyword's Quality Score and reduce the price you pay when someone clicks on your ad."
If you start a new campaign, it is no wonder that Google will not be able to give you the same placement as with a campaign that has run for years. It's new, it's unknown, the visitors / clicks are unknown, heck - even the cost-per-click value is jumping around. It looks weird to the system, it gets placed lower or even removed from some of the results.
What happens in the end: those who target properly (right keywords) and have a good ad copy get lots of clicks, those clicks end up making your placement better (while paying the same amount of money). The users are voting for your ad (whether they buy or not is partially unknown to Google -- "partially" because you can track it through Google if you want to).
A new factor coming into play is the landing page - the page that the ad takes you to. According to their blog ( http://adwords.blogspot.com/ ) they are now evaluating the quality of the landing page. So if you search for "children" and click on the "Get children at ebay" ad, and the page they link to does not offer "children", then sooner or later (heh, hard to guess, it depends on the amount of automatisation behind the checks) Google will either remove the ad or move it down, while the advertiser is still paying the same amount per click.
Is that evil? Is that being greedy? or is that just watching out for the "user experience"?
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Adwords = YOU PAYING for advertising. Great idea. Yeah, Profit!! (for Google)
Adsense = YOU GETTING PAID for advertising (clicks). Sounds like a better idea.
The duplicate content filter is for search results. It IS against Googles TOS to submit multiple ad units to the same keyword with the same site behind it, however if you have two sites you can gladly compete for adwords placement with yourself :-)
Adwords does placement on more than just the cost-per-click. This fact is spelled out all over their website, try something like https://adwords.google.com/support/bin/answer.py?a nswer=10215&topic=114 :
"We want to ensure that your keywords get a fair chance to run and that we do all we can to properly gauge their performance. We use a Quality Score to do this. Each keyword is given a Quality Score based on data specific to your account, including your keyword's clickthrough rate (CTR), relevance of ad text, historical keyword performance, the quality of your ad's landing page, and other relevancy factors.
Quality Score = keyword's CTR + relevance of your ad text + historical keyword performance + other relevancy factors
Your keyword's Quality Score and maximum CPC (at the keyword or Ad Group level) determine your ad's rank on Google search and content sites. (For the top positions above Google search results, however, we use your keyword's actual CPC.) Remember that improving the relevance of your ad text and keywords will increase your keyword's Quality Score and reduce the price you pay when someone clicks on your ad."
If you start a new campaign, it is no wonder that Google will not be able to give you the same placement as with a campaign that has run for years. It's new, it's unknown, the visitors / clicks are unknown, heck - even the cost-per-click value is jumping around. It looks weird to the system, it gets placed lower or even removed from some of the results.
What happens in the end: those who target properly (right keywords) and have a good ad copy get lots of clicks, those clicks end up making your placement better (while paying the same amount of money). The users are voting for your ad (whether they buy or not is partially unknown to Google -- "partially" because you can track it through Google if you want to).
A new factor coming into play is the landing page - the page that the ad takes you to. According to their blog ( http://adwords.blogspot.com/ ) they are now evaluating the quality of the landing page. So if you search for "children" and click on the "Get children at ebay" ad, and the page they link to does not offer "children", then sooner or later (heh, hard to guess, it depends on the amount of automatisation behind the checks) Google will either remove the ad or move it down, while the advertiser is still paying the same amount per click.
Is that evil? Is that being greedy? or is that just watching out for the "user experience"?