To Sell Out?

I've just noticed I can 'monetise' my blog... I'm fairly sure that's not a real word, but should I do it? Should we do it? I like the idea of money for (basically) nothing, but since this doesn't cost me anything, do I subject my (few) readers to yet more adverts..?

Would I be selling my soul?

Answers on a postcard please... (or in the comments section....)