Hey saru, If i didnt know better, I would think that your post was just an ad for your services?
and thanks for everybody cutting and pasting definitions of link building, but again it would seem it was just about getting your sig seen?
Yes posting info about nothing in these forums (if you dont get banned) is part of a link building strategy, but always keep in mind what you are trying to do.
Link building is the second part of website seo strategy, it is the off page stuff. The more links from authority sites in your niche, the better, but if the page doesnt have a big PR (like this page probably doesnt) and if there are many links on a page (like this page does) then the link will have little power.