Using Google Webmaster, its really so helpful for indexing your website in Google database.

Alexabootsup is my best way !!

Guest posting, forum posting, blog commenting and social bookmarking are best techniques to promote website.

I like forum posting, blog commenting and sometime article posting.

All off page SEO techniques like, Articles, forum posting, social bookmarking, blogs will helps in promoting your website.

SMO and some off-page seo techniques such as blog commenting, social bookmarking, article submission and guest posting are the best techniques for promoting the website.

forum Posting, article submission, social bookmarking, blog submission are the best way to promote your website.

First Directory submission and Social bookmarking are the best and effective for promoting a new website.

I am sure that you will have lots of promotion tactics to share in here since you have been in the industry for a long period of time already.

Best technique to promote the website are
SMO
Forum posting with signature links
Posting classifieds sites