sometimes i have a feeling that black hat works better than white hat... have you seen how high seoblackhat ranks in google?

For fast indexing, blog commenting is the way to go. And look for self hosted wordpress blogs. Google really seems to like those types of blogs.

Do a search for the topic you want to comment on, and include the word "wordpress" in the search string. You should find plenty of wordpress blogs.

If you use blog commenting, be sure to leave a good quality post - that way its not considered spam will get approved.

Most effectiveways of link building to generate traffic is by doing forum posting, blog commenting with signatures, doing quality article submissions and also by writing quality content. It will happen over time but SEO techniques play a very important role. Thanks

You'll want to participate in quality discussions in do-follow forums, blog commenting, and participate in article marketing in order to gain quality links. Do this daily and weekly. Remember, consistency is key.

Dofollow blog comments (especially in your niche market), forums, articles and directories are what I usual use.
I think most social sites are nofollow now aren't they?

write good articles or have else write for you - and submit them to article directories

You can get links through forums posts, article marketing, blog commenting. Build up quality links each and every day for the fastest ranking results.

Gain links through positive forum participation, article submission, and blog commenting.

Article submission is the first and foremost way to get indexed by Google.

Link building is a process. there are NO easy fixes (save blackhat techniques...which you should avoid at all costs). In other words you need to work at it.

Article writing and submission, BLOGGING, Link-baiting, PR's, forum and blog commenting. These are all time honored and PROVEN white hat SEO techniques that work.

Good luck ! ! !