SamDermot1

There is lots of importance of search engine in business context, big businessman are using internet to run their business..

You have to build manually.. Submitting quality articles to top article directories would automatically create links to your site as your articles may be posted on other sites as well.

I would say Adsense and Freelancing are best ways to making money online. Believe me!

Links from article directories are natural and can give you good link juice, it would automatically build links as well if your article has quality.

I think, optimizing long tail keywords with fresh content is good today, as you don't have to face massive competition.

I'm not sure that the post is spam or what as the link is not active, it may be due to less knowledge about forum participation as well. I would say moderator can look into this matter.

Blogs are good place for building links. If you managed to build links through guest blogging then it is really awesome..

Creating sitemap, and putting fresh content are also a factor for website performance..

Old domains are easy for optimization and it would give you good SEO benefit compared to new domains..

Yes, you can also find in forums by asking this kind of question, if someone has then he would post here. I think most of the blogs enabling commentluv are dofollow so you can check them...

However, you should consider around one week for crawling and indexing, Google takes I think one week to crawl new content from site..