Welcome to the forums, @cloudinfo.
We appreciate your enthusiasm for joining the discussion, but please take the time to read the thread before you reply. Some of the points you have made have been made (and refuted) already.
[quote=“cloudinfo, post:21, topic:219268”]
Submit to more do-follow sites with 5 to 7 page rank
[/quote]PageRank is calculated per page, not per site. So a site may have a high PR on it’s home page, and very low PR elsewhere.
[quote=“cloudinfo, post:21, topic:219268”]
generate quality links via guest blogging , Forums , social bookmarking
[/quote]As already mentioned. links which you can easily place yourself in this way are regarded as of little worth by search engines. Additionally, these types of user-submitted link will be marked nofollow by reputable sites, in accordance with Google’s guidelines.
[quote=“cloudinfo, post:21, topic:219268”]
You can generate even more no-follow no problem with your site reaching top in google but to boost your rank try to submit do-follow also.
[/quote]The question in the topic is about increasing PageRank. Nofollow links will be of no benefit there.