I would like to suggest my favourite: weebly.
You may create free website or blogs very easily. You may have different page layout for each page. You may use adsense easily. There is already a widget for that. However, as a free user you will have to share 50% of adsense revenue earned on weebly site with them (this does not affect revenue you earn from adsense on other sites). You have the option to upgrade and keep all your 100% revenue.
You may learn more about earning on weebly from the following hub: