You are basically talking about a version of link wheel. It can take a lot of time. you can automate it with certain softwares available on the net. there are possibly thousands of sites hosting free wordpress service. So you have a whole lot of sites to get links from
the Squidoo and Hubpages suggestions are preferable, but I do know a couple of people who do this. One of my friends swears that by announcing her new articles and such on blogger blogs her sites get ranked faster, but it's definitely not something worth investing lots of time in. You asked about linking all your sites together. Why do you want to do that?
It wont work, You will have to promote those smaller blogs. Some of them are NoFollow. It would cost you less just to buy a backlink
With Blogger going nofollow this doesn't seem to work at all for me anymore. I would set up a blog and post the best of related articles as posts with a few of my sites listed in the sidebar. But it didn't make much difference that the posts were relevant and original. I got zero traffic and no noticable improvement in search engines. Even setting the posts up to appear over semi regular intervals didnt help. I would go with article marketing (for lots of low value links) or Hubpages for a better link value. Or use your own domain and a seperate server....
I have been doing this for a decent time, and it is working. You must create a blogger blog, wordpress.com blog, a hub on hub pages and a squidoo lens. The idea of this link building strategy is quite simple. Make free blogs, write some unique content, and link back to your blog or niche site. Some of you will probably think what’s the deal to link back from a little blog that has only 2 or 3 articles. The main idea of this is that all of these blogs (blogger, wordpress.com, hub pages, etc) are actually subdomains of a big PR website. Even if your small blog at blogger is 0, still it’s a subdomain of a PR 8 site. This will make Google to “love†more. And it has been working for me quite well. This strategy really helps my small niche websites to climb higher in search results. My advice - When you write the content for these small blogs put these links that are linking back to your blog in the text of the article - contextual links, so Google thinks it’s a natural link. By any means I am no SEO expert, and maybe there are better ways how to this, but this is what has worked for me so far quite well ! TIP: To make your small blogs in the eyes of Google more worthy, submit your posts to social bookmarking websites using Social Marker.
I tried to use the free WordPress platform (Wordpress MU), I imported content with links and have been banned....
My Friend is working on multi national company he told me about his company seo manager he is doing work with blogs for link building and he said there sale was doubled through this programme may be its work fine i suggest you first do socail networking then try blog posts or i have another idea go to buy and trade section buy post from some one then your post will be on his blog for life time so you will get good response
you can change this simply by removing the nofollow as for the idea - if you maintain the blogs and promote them, you could see some very good backlinks begin to grow. if you just stick up a blog with 1 post a month and dont promote it, you're going to see very little come back from it. i know, because i've tried!