I've just been reading the lzzr.com seo blog with interest. His thoughts on backlinking are worth a read and turn classic site-promotion thinking on its head a bit. Rather than (hmmm...perhaps as well as it better) promoting your own site to gain search equity, promote sites that already link to you. Build their importance and thereby your own by the fact that (more important) sites are already linking to you. Give them some link love and the love will be rewarded.
Of course, you can see both your own visibility in search using the site: operator (like this) and how many sites link to you using the link: operator (like this). By using the latter, you're effectively creating the perfect 3-way link structure which is known to be better than utilising link farms (which of course suck).
But search engines don't generally index their own SERPs (although Netscape results do get into Google SERPs), so LZZR suggests building an intermediate feed of results pages (such as that from Google Blogsearch) that will then itself get included in results.
So in short: add links to feeds of searches that return sites that link to you where ever you can...and watch the love flow in. LZZR suggests places like Squidoo which allows you to publish feeds directly on your lens.
I'll be watching the love with interest and will report back here on this blog.