Looking for advice on wordpress sites?

hai frinds here iam looking for all of your advice
i am a websmaster from India.i would like to create niche adsense website using wordpress sites. i have came up with forum post they are saying that i haver to take different c block ips addresses
for all my websites Even there are in Different topics:
Online Degrees, Insurance, loans, Dating Etc
and i want to clarigy that i dont want to interlink them
Do i rellay need to host all of my websites in different c blok addresses if i need to host on seperate c block ips then what i have to take Shared or Dedicated c block ips . do i need kee doamin name privbate while i am registering i want to rank in google.com for us tragetted
i f any body can help me in this doubt
and also i want to know what are the ways to generate USA traffic to all my websites except PPC thanks in advance
Regards
Santhosh
[email protected]
Thanks in Advance

no you dont need to host them on different class c's if they are completely unrelated.

the whole point of hosting on different ips is to disguise your link network.

so you would only need different C's for if you had sites you were strategically linking to boost.