If you are new to blogging and wondering how many sites or blog I can own and run Google ads on, this article will provide you the clear picture of it. Without wasting much of your time, I would like to tell you that there is no restriction on using Google Adsense on multiple sites or blogs. You can own "n" number of sites and place Google Ads. However, the details and information I provided below based on the research on blogger.com and Google Adsense, you will know it for sure.
How Many Blogs I Can Create in Blogger.com ?
For a single Google account that has linked to Blogger.com., you can create up to 100 blogs. I checked the help forum for bloggers and the exact statement was "You can create up to 100 blogs per account.". You may check the same by clicking Here.
How Many Sites I Can Link to Google Adsense Account ?
I reviewed the Google Adsense Program Forum and I have to admit that I could not find an exact answer. However, it gives us the hint for adding the ad codes to any website you own and have .html access to it. You can find the screen of a post from the official Google Adsense Blog.