A noob question about build internal-link and link-buiding

[zuma]

Hi everyone,

I'm newbie on SEO, so i have some noob question.

The fist is:
I'm have a website magazine about StartUp.
I update content each day.
But my trouble is the right way to buid internal link for that type of website.

The second about backlink:
example: i have five keyword A, B, C, D, E, F and website with 5 post for each key word, and i want buid backlink for it.

strategy 1:
So with keyword A I will buid enough number of back-link type comment, forum, bookmarking ...
until it go on top 10 google.
with each link is a new content (this was spin)
or I will copy the organizing content on my site and link back to my site?

strategy 2:
So, with keyword A i will build follow progress:
firt post for keyword A
I will copy the organizing content of this post and link back to about 30 link type : comment, forum, bookmarking ....
If it not rank.
(copy content just for forum)

I will write second post for keyword A
And I will copy content of this post (second post) and do the same progress with first post, but the link will back to the first post???

And if it not enought i will write thirst, fourth, fifth, sixth ... post
And repeat until it rank on top 10???

Please help me!
Thank you so much :D