There are several platform to chose from, like wordpress, typepad, etc., but the easiest and practical blogging platform to make money with, is the blogger platform, which i am currently using with my blogs. This platform is owned by google, same thing with adsense, so blogger platform has connection to adsense - the advertising component of blogging. That makes it even more advantageous to use blogger in making money. Aside from that, blogger is easy to set up and no need for you to rent for a web host to integrate adsense with your blog. You only need a domain name and your blog is ready!