http://www.ratemyhonda.com as you can see at the top-right of my page, i have a banner which is an alternative to when google doesn't have ads, my question is: why don't i have adsense showing up yet? keywords are everywhere and I even have a list of keywords at the bottom of my page so they can pick them up and serve some ads, but even that's not working! anyone know what's up?
I'm guessing your site is new. It's not even in Google's index yet. You'll just have to be patient until Adsense crawls your site. Submit a sitemap, it's been known to help increase the speed of indexing/crawling.
3 weeks? I think this abnormal. Should you revised your layout or theme? Try use http://www.acmetech.com/tools/adsense-preview/index.php
I would definitely remove the keyword stuffing the second you read this thread again. If you want to get relevant ads for that, use section targeting on the description sections of your site. Although I'm not quite sure why they're not showing up... very peculiar.
The date of your site being up is irrelevant if it's not already in Google's index. Use the sitemap. It's been known to help.