2 Hours SEO consultation II (Webcont247365)

Thanks for SEO Lesson.

I want to discuss following aspects of SEO:-
1) Keyword density, how to write keyword rich content and why its necessary.
2) what is good keyword density for google?
3) Article Marketing
4) posting on blog
5) poarting on forum
6) backlinks from different sources
7) how to increase PR

And few more easy questions,

Thanks for your previous consultation.