Actually not that difficult, got mine approved within 24 hours from submission, with newly created gmail account, new blogger.com account, both less than 1 day old when I applied. Did two good posts. Now I am using the pub number for all my other websites ... and many of these site are less than six months old but with solid contents. Hope it helps.
Some PPC, that i have join is: adsense, pixazza, chitika, infolinks Traffic from US, UK, and CA is important point to get more $$$
I just got my Adsense account shut down. I only had Adsense on one of my sites as I mostly do affiliate marketing. The site has been around for a long while just trotting along in the background. Then from nowhere in the last couple of months it gets a massive boost of traffic. I started getting clicks on ads then before I know it an email from Google telling me they shut my account. I filled out the appeal form but they just got back to me saying sorry but you are still shut down. So, my advice is not to have a business model that revolves around one source of income.
Yeah, you're right. 99% of all PPC networks out there are just plain nightmare. Google is the only one I can trust.