Doing this to rank my site

Point1: So, few hours ago, I submitted all the 30 tumblr blogs to google webmasters and one already got indexed. Hoping they all get indexed soon. Done for the tumblr blog.

Point 2: Yesterday while creating blogs webs.com I found that there was an option that let users to create as much as blogs they would like in one account.
Should I do that? Or should I do one blog, one account (changing IP to create account etc...) All of the blogs content will be unique.
So Does one account one ip really matter?
Anyone knows anything about it?
 
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