The key ingredient here is links, we all know that lots of incoming links from half-decent sites works.

Once you have chosen your keyword target/market it's time to get building, honestly all you need is a few pages interlinked with some content, with a couple of outgoing links to any various site that google engine can atleast think your site is related to the 'real world'.

Use keyword heavy paragraphs that are actually of use to someone in your keyword market, that is to say - keep them ontopic, and dont stray so much, keep the content as original as possible.

Choose a well thought out domain name, there are two approaches here, (1) is use a keyword-centric domainname or (2) use a domainname that cant possible match any keyword but still looks human enough.

What is better than placing your links everywhere?
Having your links placed for you

The trick here is web templates specifically, free ones.
The knack is that each one has a "designed by <A HREF="http://keywordsite.com">keyword context</A>

A really great template here is this terrafirm template, it's had over 35,000 downloads from OSWD, and I bet you a lot more, what is interesting is that if you look at the bottom of the template you see "© My Website. All rights reserved. Design by NodeThirtyThree.", this is also a hyperlink to the NodeThirtyThree web-company who I am sure do great work.

The real clincher here is just how many people still install that template and leave the link at the bottom intact.
Let's google that fact, you will see that as of the date of this article google is revealing almost 11,000 hits!