I have very simple question: which one is better situation: having many blogs from blogspot linked to same site or having one blog with multiple pages linked to same site advantages or disadvantages ? any feedback appreciate
It's not that simple. I am assuming you mean in terms of SEO. Setting up multiple blogs for the purpose of having links is nothing more than a link farm and is an old tactic that Google can see right through ( especially since they own Blogger). Having one site with multiple pages is only as good as what ever content is on them. Links from a bunch of spammy garbage pages that don't provide any benefit to readers will fall in the serps and do you no good anyway. Self linking or link manipulation takes twice as much work as solid content and good promotion. If you have quality content and decent promotion skills, people will do the SEO for you and link to, bookmark and subscribe to your content. You only need to do all of those things if your blog is crappy and you don't do any promotion. Spend time on the quality of the website, do some basic to advanced SEO and promote. You don't need to build link farms and drop article and comment spam all over the internet when readers enjoy your content.
I have 2 blogspot blogs, (pagerank) PR-3 & PR-2. I have a wordpress site that is new (maybe 5-months), I have 3 external links on blogspot linking to my wordpress. Since the last pagerank update my wordpress blog is now PR-1, & I really havn't posted many blog-post, I have done a lot of SEO on all 3 blogs. I wouldn't push your luck with a link farm... I doubt it would look good that you have a massive amount of blogspot links, pointing to a single blog/site, especially from the same blogspot account, lol.