Is it possible to use AdSense on a free .wordpress.com blog? I can't see any way of doing this in the configuration.
There are options to add text widgets etc, but nothing for adds?
Topic adsense wordpress.com-hosting Wordpress
Category Web
You can do it If you pay for premium features. With this, your blog will get Ad-control option .Later you do need to contact the Wordpress team using the contact form on this page Ad control.
My advice is to don't expect to earn much from Adsense unless you have 1000 hits per day and are blogging about a subject where the typical visitor is inclined to click on ads. Other wise it would be a waste of your money to purchase the premium package .
Hope this answers your question :)
Adsense relies on Javascript and you can not use Javascript on a free wordpress.com blog. So you can not use Adsense. Next to that, delivering adds is something that wordpress.com reserves on it's own to do, so what you want to do might conflict with their terms of service as well.
As for any wordpress.com related question, please pose that question to their technical support as well to get an answer.
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