.gov sites seem to be the highest status
.edu sites seem to be given a high status
.org sites seem to be given a high status
.com sites excel in encompassing all the spam/ crud sites, resulting in the need for the highest scrutiny/ action by Google.
Perhaps one would do well with the new .info domain class. - Nope. Spammers jumped all over it - no safe haven there. Not so much, now - .info sites can rank highly.
