I am using 1 hosting account, and using .htaccess to redirect the domains to their proper folder. But every time I add a new page on any of my domains... the adsense ads show up as the main hosting account domain sites category... And its literally taking about a week before the ads on those pages become even remotely relevant. I remember it used to take a couple hours max.
Believe me the keywords in the title tags... it just automatically puts teen related ads on a website not related to it for a week! uggh... Is it really that bad when you host multiple accounts from the same class C address?
The adsense bots will come and fix the ads, I know it sux waiting but it does happen, more so when the domain is like EATFISH.COM and the content is about cars ( <<---Just an example )