It's one of
the most common questions raised, by new folks
and more established members.
Let's put all that advice in one place from now on.
If you're going to comment on a technique,
resource, or strategy that's been mentioned
previously, please try to add something to what's
already been said. Keep the signal to noise ratio
high, and this could end up as one of the most
valuable threads in the place.
On your marks...
I'll throw out the first tip: Talk about something
people want to know.

Instant Traffic Strategies:
1. Social media marketing - especially Twitter. Join
groups, be an active part of discussion, etc.
2. PPC + other advertising - SMM aside, if you want
instant traffic, you need to shell out bucks.
Long-term Traffic Strategies:
1. SEO.
2. Content syndication.
3. Guest blogging/posting.
4. Article (directory) marketing.
5. YouTube.
6. Slideshare.
7. Document sharing websites.
8. Blogs created whose sole purpose is to promote
another.
Returning Traffic Strategies:
1. Build a list.
2. Give 'em a reason to come back. That means
crazy awesome, gob-smacking Superman content.