News of SEO Techniques

Hello friends,
I have started a new SEO project related to apps promotion. But little bit confused as the project is related to single app on two platforms. Already done promotion for one of the platform now the second one’s turn as it has just released. Both the apps are on same site so difficult to follow certain techniques of SEO like directory submission, social bookmarking as the domain already exists there and they will not accept the domain again. Please let me know how I can promote this app for second platform too.
Thanks waiting for your valuable suggestions.

If the bb code is not visible or blocked then how can i paste the link on it , is there any solution of it.

I submitted my site to www.woorank.com and he did not find a sitemap. The sitemap is very helpful in indexing. The defaul Phpbb has a sitemap or have to install ?
How do I know if my site has already installed a sitemap?

Hello I want to know if the "website" field im the profile of Phpbb forums generate backlinks to your site even if the site is not written in the post.
If yes, to generate this backlink is necessary to send messages or just being registered?

I am curious if this scraping thing here and would like to do the same, but don't know what kind of program should I use to

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