I've been running a number of experiments over the last few months and closely monitoring the effects of various types of links for new blogs.

Here are my conclusions:

1. Always start out your link campaign with a week's worth of article or page level links.
2. Never start off with run-of-site links
3. Leaving your link in the no-follow comments section of a blog works wonders, especially if you do it on about 5+ blogs
4. Only add run-of-site links if you're desperate
5. A few good page level links can get you killer results
6. Too many run-of-site links can literally sink the short-term effects of you linkbuilding campaign
7. A mix of about 35/65 between main page and deep links seems to work very well.

So there you have it. A recipe for quick linkbuilding success (in terms of SERPS not PageRank) consists of getting about 10 main page links (within fresh content...not old, retrofitted content), 20 deep-links, and participating in the comments section of 5-10 thematically related blogs.

The order of your linkbuilding campaign should be something like this:

* Start by getting deep links in fresh content on other blogs
* Next participate in the comments section of a few blogs where your name on each comment links back to your main page
* Next get a few main page links
* At this point, you might start doing some social media promotion via Netscape, Reddit, Digg, StumbleUpon.

And for God's sake, only do run-of-site links as a last resort (if SERPS are your main concern).