1st method = make account on blogger.com do blogging, now add ADDS to ur blog, when any one will visit ur blog and clicks these ads you will earn money,, adds can be displayed by logging to www.google.com/adsense
sign up there with your google account, follow simple instructions,, google will give u a code paste that in your blog it will start displaying ads,, then u can display add by going to LAYOUT>ADD GADGET>ADSENSE,.
