This is something Google are surely working on, or, i hope they are. As much as the topic of SEO fascinates me, when it's successful it can be so deleterious to the quality of results. Google search is practically useless, for many searches that i'd do which i'd imagine are common enough.
Especially, I just hate how much google gives credit to the terms which are in the domain name. Why is having been able to register a "good" domain first such an important signal about site relevance? On many searches the first page is full of "keyword.com" "keyword.net" "keyword.it" websites that were only made for SEO and Adwords and have no usefulness.