Three out of every four Blogspot URL’s were spam

Now this is a good reason on why you shouldn’t choose Blogspot to blog if you’re serious about blogging :

Three out of every four unique Blogspot.com URLs that appeared in the top 50 results for commercial queries were spam, the study said. Blogspot is the hosting site for Google's blogging service. Blogs created for marketing purposes are sometimes referred to as splogs

Also, one domain – topsearch10.com – hosted many other redirection domains that were responsible for 22 percent to 25 percent of the spam detected during the researchers' tests, the study said – Full Story

If you’re serious about blogging without thinking about anything else maybe you should consider using free wordpress.com service rather than blogspot because of their strict spam policy, other than that they also restrict you to put ads on your website (i know there would be different opinion about this but if you’re really serious, you should try to get a domain name and get real webhosting instead) or using any redirection technique which results in less spam