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Is contextual broke?

Ads based on 1st pagaraph alone

     
4:54 pm on Dec 3, 2005 (gmt 0)

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I recently discovered that either media bot does very shallow data grabbing, or Google's contextual algorithm does not analyze the whole page for key words density but bases its ads on the first 5 lines or so.

I was able to confirm this as a pattern in several locations.

Case and point: One of my pages is about training, the first paragraph talks about general training issues in the airline industry, but the rest of the page contains very detailed training specific text, Title, Description meta's are training related. I never understood why I am getting travel and tourism adds filling my leaderboard until I replaced the first paragraph, and bingo, things are related again!

Google preaches developing content for people not bots, but unless they scan and analyze whole pages, they will fill the web with content written only for AdSense.

5:01 pm on Dec 3, 2005 (gmt 0)

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Try section targetting it should help.
5:13 pm on Dec 3, 2005 (gmt 0)

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I recently discovered that either media bot does very shallow data grabbing, or Google's contextual algorithm does not analyze the whole page for key words density but bases its ads on the first 5 lines or so.

Really? I've seen mistargeted ads where the keywords seemed to have been grabbed at random from the middle of the page.

Most of the time my site's ad targeting is pretty good, though, and I don't optimize for AdSense.

5:23 pm on Dec 3, 2005 (gmt 0)

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europeforvisitors, try it on only one of your pages, rewrite the first paragraph (4-5 lines) and you will see what I am taking about.
5:31 pm on Dec 3, 2005 (gmt 0)

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I've found this.

I've also found section targetting to be pretty useless to be honest.

5:39 pm on Dec 3, 2005 (gmt 0)

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>Try section targetting it should help

Not an option for large amounts of content, you might as well rewrite the first paragraphs to accmodate AdSense.

6:02 pm on Dec 3, 2005 (gmt 0)

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europeforvisitors, try it on only one of your pages, rewrite the first paragraph (4-5 lines) and you will see what I am taking about.

It might work that way right now, but a week or a month from now it's likely to work differently. If you choose to rewrite text to improve ad targeting, you'll probably have to do it again...and again...and again over time. (Personally, I'd rather write content for my readers and let Google take care of the ad targeting, which normally works quite well.)