my site has no backlinks listed on the Goog. i've found several pages scattered across the net with direct links to my site. why aren't these credited?
I have seen it take up to 5 weeks for Google to find a link. It also depends on the PR of the site. Google will find higher ranked sites first - and their links
Some people are guessing that PR will update in the very near future. Keep an eye out on the message boards for people announcing their PR has changed then take another look at your own. If you haven't moved from 0 you should probably consider a more aggressive linking campaign.