Because when someone starts a contest or giveaway with you as one of the sponsors, his/her blog post regarding the contest will include your blog link on it. And when someone joined his/her contest, contestant are “mostly” required to create a new post on his/her blog about it where “he/she must state and include the link of the sponsors’s blog.” How does it feels to be “reviewed” by other blogs and websites for
free less? The more contestant, the more links to your site. The more links to your site, the higher your page rank!
How about on your part? As I told you lately, it is so easy! You’ll just need to prepare a small ad space or spot on your blog where you will place the blog’s contest winner. For that, 125 by 125 pixel size will do. After a month, you can put away the the ad spot. Or maybe you can donate some bucks from your Paypal account.
So, you can now start searching for those blogs looking for sponsors and give them what they want! Based on my personal experience, being a blog sponsor really helps.