You need advertisers to make cash with your blog. That means you have to make a blog interesting enough to get a lot of hits, which is what attracts advertisers.
main things is traffic..if u have good traffic like us uk ca or aus..then only placing adsense can make u money..other wise its tough to make money from blog..
People usually uggest that blending AdSense ads with the content is a way to make money from a website. In reality it’s not; it’s just a way to make more money by improving your ad click-through rate. The real monetization method behind it is a PPC ad network.
You can go the Adsense method, but most effectively is Affiliate marketing, if you get just a few sales a month you may see hundreds of $ from referrals. I highly recommend it.