Have you found any tricks to get more PR juice from the main domain of free blog services like blogger.com for example? Like, based on what they link to some of the blogs from the main domain or from other blogs?
It works if you know how to do. Someone would spend hundreds to register domain to link building for specific site on specific keywords, and blogspot is powered by Google as well as free of charge that you can create as many as you can by hiring people.
idea I got from Labnol blogger : make more links in your blogger profile ! see : http://www.blogger.com/profile/05692725553710188150
Well you need to get backlinks to "dofollow" high PR blogs in order to get link juice. If you are able to do it, you will be in a good position in search engines.
If you are creating blogs for links, then is there an advantage over using the blogger/wordpress over just placing a wordpress install on a separate IP? You still would have to create the good content and create the proper backlinks. So besides the money involved in hosting, is there a real advantage in gaining PR from a blogger/wordpress account, just because the main domain has a high PR? If not, wouldnt it be better to invest in something you own?