Someone else's ads on my new blogs, please help!

Dear WordPress Bloggers,

Please help! Thank you.

I am relatively new to WordPress. I followed your tutorial on lynda.com to make 2 new blogs, one for myself and one for a friend.

After about a month I noticed that unwanted advertisments were being placed on my personal WordPress blog and also on my friend’s business blog! Some of the ads on my friends wordpress blog were from competitors!

Question: how do I get them off. and how do I fix the blogs so that this does not happen again?

Thank you very much in advance, Elizabeth ([email protected])

Here are the links to the blogs with the unwanted ads:

UNWANTED ADS ON ORIENTAL MEDICALS ARTS BLOG that I made for a client located here:

https://orientalmedicalarts.wordpress.com/2009/12/30/facial-rejuvenation/#more-34

These ads are for La Mer, Park Slope Acupuncture, Chi Enterprise Products and The Won Institute.

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UNAUTHORIZED ILLEGAL AD FOR FULL SAIL UNIVERSITY ON MY BLOG located here

https://oasiswebdevelopment.wordpress.com/2010/03/15/10-web-design-best-practices/